* configure.ac: Followup r1134219: Use 'cmp -s' instead of 'diff' to    detect changes to svn_private_config.h.  Take advantage of the fact    that cmp -s produces no output even if a file does not exist.    Use a temp variable to shorten the lines further.
* configure.ac: Followup r1134219: Use 'cmp -s' instead of 'diff' to
   detect changes to svn_private_config.h.  Take advantage of the fact
   that cmp -s produces no output even if a file does not exist.
   Use a temp variable to shorten the lines further.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1136114 13f79535-47bb-0310-9956-ffa450edef68

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