Fix SNMP password flags in documentation.

snmpauthpassword -> snmpauthpass
snmpprivpassword -> snmpprivpass
 Fix SNMP password flags in documentation.

snmpauthpassword -> snmpauthpass
snmpprivpassword -> snmpprivpass
Merge branch 'devel' of github.com:bram85/munin into bram85-devel
Fix SNMP password flags in t/pod-spelling.t
Merge branch 'bram85-devel' into devel