do not re-init the exception cause with the same

- the code looks strange as it sets the exception cause within the constructor and
then tries to re-init it again with the identical cause
- I do not want to change the behavior at this stage, so I'm just avoiding
another exception being thrown

addressing:
java.lang.IllegalStateException: Can't overwrite cause
at java.lang.Throwable.initCause(Throwable.java:337)
at com.redhat.rhn.frontend.xmlrpc.XmlRpcServlet.doPost(XmlRpcServlet.java:189)
1024118 - Remove bogus help-url/rhn-help/helpUrl links from all pages
slightly improve contrast of left menu
Automatic commit of package [spacewalk-branding] release [2.3.9-1].
1151005 - add package id to query results so webui can generate link
Automatic commit of package [spacewalk-java] release [2.3.63-1].
1150526 - introduce a check for an empty snapshot tag for ssm
limit snapshot tag length to the DB field lenght

what is:
grep name schema/spacewalk/common/tables/rhnTagName.sql
    name      VARCHAR2(128) NOT NULL,
Automatic commit of package [spacewalk-web] release [2.3.15-1].
style /rhn/configuration/file/DeleteRevision
style /rhn/configuration/file/DeleteFile
Correct style-issue due to empty old-list-tag in /rhn/configuration/GlobalConfigFileList
Correct style-issue due to empty old-list-tag in /rhn/configuration/file/LocalConfigFileList
Correct style-issue due to empty old-list-tag in /rhn/configuration/Overview
Style tweak to fix /rhn/configuration/channel/ChannelSystems
1028933 - detect invalid boolean/integer entries
Automatic commit of package [spacewalk-utils] release [2.3.14-1].
oracle-instantclient11.2 requires libstdc++.so.6
Automatic commit of package [oracle-lib-compat] release [11.2.0.10-1].
style .spacewalk-list-footer-addons-extra to float-right like all the other list-bottom-matter