Stylistic follow-up to r24831.
Stylistic follow-up to r24831.

* subversion/libsvn_client/log.c
  (svn_client__get_copy_source): Acknowledge that strcmp() has a
   numeric (rather than boolean) return value.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@864906 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion