Updating naming accounts_password_pam_cracklib_difok -> accounts_password_pam_difok.xml

process:
[shawnw@ssgdev-rhel7 scap-security-guide]$ grep -rin accounts_password_pam_cracklib_difok *
RHEL/6/input/auxiliary/stig_overlay.xml:195:	<overlay owner="disastig" ruleid="accounts_password_pam_cracklib_difok" ownerid="RHEL-06-000060" disa="195" severity="low">
RHEL/6/input/profiles/CS2.xml:15:<select idref="accounts_password_pam_cracklib_difok" selected="true"/>
RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml:165:<select idref="accounts_password_pam_cracklib_difok" selected="true" />
RHEL/6/input/profiles/common.xml:59:<select idref="accounts_password_pam_cracklib_difok" selected="true"/>
RHEL/6/input/profiles/fisma-medium-rhel6-server.xml:283:<select idref="accounts_password_pam_cracklib_difok" selected="true" />
RHEL/6/input/profiles/fisma-medium-rhel6-server.xml:299:<select idref="accounts_password_pam_cracklib_difok" selected="true" />
RHEL/6/input/profiles/rht-ccp.xml:62:<select idref="accounts_password_pam_cracklib_difok" selected="true"/>
RHEL/6/input/profiles/usgcb-rhel6-server.xml:84:<select idref="accounts_password_pam_cracklib_difok" selected="true" />
RHEL/6/input/system/accounts/pam.xml:389:<Rule id="accounts_password_pam_cracklib_difok">
RHEL/6/input/system/accounts/pam.xml:409:<oval id="accounts_password_pam_cracklib_difok" value="var_password_pam_cracklib_difok"/>
RHEL/7/input/auxiliary/stig_overlay.xml:187:	<overlay owner="disastig" ruleid="accounts_password_pam_cracklib_difok" ownerid="RHEL-06-000060" disa="195" severity="low">
RHEL/7/input/profiles/rht-ccp.xml:59:<select idref="accounts_password_pam_cracklib_difok" selected="true"/>
RHEL/7/input/system/accounts/pam.xml:388:<Rule id="accounts_password_pam_cracklib_difok">
RHEL/7/input/system/accounts/pam.xml:409:<oval id="accounts_password_pam_cracklib_difok" value="var_password_pam_cracklib_difok"/>
shared/oval/accounts_password_pam_cracklib_difok.xml:2: <definition class="compliance" id="accounts_password_pam_cracklib_difok" version="1">
shared/oval/accounts_password_pam_cracklib_difok.xml:14:      test_ref="test_accounts_password_pam_cracklib_difok" />
shared/oval/accounts_password_pam_cracklib_difok.xml:18:  <ind:textfilecontent54_test check="all" comment="check the configuration of /etc/pam.d/system-auth" id="test_accounts_password_pam_cracklib_difok" version="1">
shared/oval/accounts_password_pam_cracklib_difok.xml:19:    <ind:object object_ref="object_accounts_password_pam_cracklib_difok" />
shared/oval/accounts_password_pam_cracklib_difok.xml:20:    <ind:state state_ref="state_accounts_password_pam_cracklib_difok" />
shared/oval/accounts_password_pam_cracklib_difok.xml:26:  <ind:textfilecontent54_object id="object_accounts_password_pam_cracklib_difok" version="1">
shared/oval/accounts_password_pam_cracklib_difok.xml:33:  <ind:textfilecontent54_state id="state_accounts_password_pam_cracklib_difok" version="1">
[shawnw@ssgdev-rhel7 scap-security-guide]$ sed -i 's/accounts_password_pam_cracklib_difok/accounts_password_pam_difok/g' RHEL/6/input/auxiliary/stig_overlay.xml RHEL/6/input/profiles/* RHEL/6/input/system/accounts/pam.xml RHEL/7/input/auxiliary/stig_overlay.xml RHEL/7/input/profiles/rht-ccp.xml RHEL/7/input/system/accounts/pam.xml shared/oval/accounts_password_pam_cracklib_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ vim shared/oval/accounts_password_pam_cracklib_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ git mv shared/oval/accounts_password_pam_cracklib_difok.xml shared/oval/accounts_password_pam_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ vim shared/oval/accounts_password_pam_cracklib_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ vim shared/oval/accounts_password_pam_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ grep -rin var_password_pam_cracklib_difok *
OpenStack/input/profiles/stig-rhevm3.xml:253:<refine-value idref="var_password_pam_cracklib_difok" selector="3"/>
RHEL/6/input/fixes/bash/accounts_password_pam_cracklib_difok.sh:2:populate var_password_pam_cracklib_difok
RHEL/6/input/fixes/bash/accounts_password_pam_cracklib_difok.sh:5:	sed -i --follow-symlink "s/\(difok *= *\).*/\1$var_password_pam_cracklib_difok/" /etc/pam.d/system-auth
RHEL/6/input/fixes/bash/accounts_password_pam_cracklib_difok.sh:7:	sed -i --follow-symlink "/pam_cracklib.so/ s/$/ difok=$var_password_pam_cracklib_difok/" /etc/pam.d/system-auth
RHEL/6/input/profiles/common.xml:252:<refine-value idref="var_password_pam_cracklib_difok" selector="3"/>
RHEL/6/input/profiles/fisma-medium-rhel6-server.xml:298:<refine-value idref="var_password_pam_cracklib_difok" selector="1" />
RHEL/6/input/profiles/rht-ccp.xml:20:<refine-value idref="var_password_pam_cracklib_difok" selector="3"/>
RHEL/6/input/profiles/usgcb-rhel6-server.xml:83:<refine-value idref="var_password_pam_cracklib_difok" selector="3" />
RHEL/6/input/system/accounts/pam.xml:187:<Value id="var_password_pam_cracklib_difok" type="number" operator="equals" interactive="0">
RHEL/6/input/system/accounts/pam.xml:393:Add <tt>difok=<i><sub idref="var_password_pam_cracklib_difok" /></i></tt> after pam_cracklib.so to require differing
RHEL/6/input/system/accounts/pam.xml:409:<oval id="accounts_password_pam_difok" value="var_password_pam_cracklib_difok"/>
RHEL/7/input/profiles/rht-ccp.xml:20:<refine-value idref="var_password_pam_cracklib_difok" selector="3"/>
RHEL/7/input/system/accounts/pam.xml:187:<Value id="var_password_pam_cracklib_difok" type="number" operator="equals" interactive="0">
RHEL/7/input/system/accounts/pam.xml:409:<oval id="accounts_password_pam_difok" value="var_password_pam_cracklib_difok"/>
RHEVM3/input/profiles/stig-rhevm3.xml:253:<refine-value idref="var_password_pam_cracklib_difok" selector="3"/>
shared/oval/accounts_password_pam_difok.xml:24:  datatype="int" id="var_password_pam_cracklib_difok" version="1" />
shared/oval/accounts_password_pam_difok.xml:35:    <ind:subexpression datatype="int" operation="greater than or equal" var_ref="var_password_pam_cracklib_difok" />
[shawnw@ssgdev-rhel7 scap-security-guide]$ sed -i 's/var_password_pam_cracklib_difok/var_password_pam_difok/g' OpenStack/input/profiles/stig-rhevm3.xml RHEL/6/input/fixes/bash/accounts_password_pam_cracklib_difok.sh RHEL/6/input/profiles/* RHEL/6/input/system/accounts/pam.xml RHEL/7/input/profiles/rht-ccp.xml RHEL/7/input/system/accounts/pam.xml RHEVM3/input/profiles/stig-rhevm3.xml shared/oval/accounts_password_pam_difok.xml
[shawnw@ssgdev-rhel7 scap-security-guide]$ git mv RHEL/6/input/fixes/bash/accounts_password_pam_cracklib_difok.sh RHEL/6/input/fixes/bash/accounts_password_pam_difok.sh
[shawnw@ssgdev-rhel7 scap-security-guide]$ git commit -a
Aborting commit due to empty commit message.
[shawnw@ssgdev-rhel7 scap-security-guide]$ cd RHEL/6/input/checks/
[shawnw@ssgdev-rhel7 checks]$ git rm accounts_password_pam_cracklib_difok.xml
rm 'RHEL/6/input/checks/accounts_password_pam_cracklib_difok.xml'
[shawnw@ssgdev-rhel7 checks]$ ln -s ../../../../shared/oval/accounts_password_pam_difok.xml .
[shawnw@ssgdev-rhel7 checks]$ cd ../../../7/input/checks/
[shawnw@ssgdev-rhel7 checks]$ ln -s ../../../../shared/oval/accounts_password_pam_difok.xml .
[shawnw@ssgdev-rhel7 checks]$ git add accounts_password_pam_difok.xml
[shawnw@ssgdev-rhel7 checks]$ git add ../../../6/input/checks/accounts_password_pam_difok.xml
[shawnw@ssgdev-rhel7 checks]$ git commit -a
updating XCCDF pam_cracklib->pam_pwquality for accounts_password_pam_difok
updated accounts_password_pam_difok OVAL for RHEL7

note per manpage the difok value must be non-negative, so took out "-?" from regex
Merge branch 'accounts_password_pam_cracklib_difok' of https://github.com/shawndwells/scap-security-guide into shawndwells-accounts_password_pam_cracklib_difok

Conflicts:
	RHEL/6/input/profiles/CS2.xml
	RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml
	RHEL/6/input/profiles/common.xml
	RHEL/6/input/profiles/fisma-medium-rhel6-server.xml
	RHEL/6/input/profiles/rht-ccp.xml
	RHEL/6/input/profiles/usgcb-rhel6-server.xml
	RHEL/7/input/profiles/rht-ccp.xml
	RHEL/7/input/system/accounts/pam.xml
Merge branch 'shawndwells-accounts_password_pam_cracklib_difok'