Resolve a bug in svnpubsub commit hook when there is no author.
Resolve a bug in svnpubsub commit hook when there is no author.

The existing code ran strip before splitting, which would have
removed the leading blank line indicating no author.

* tools/server-side/svnpubsub/commit-hook.py
  (svncmd_info): strip individual fields after splitting.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1424775 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion