Fix Issue 3453: Building Subversion 1.6 requires GNU grep 2.5.
Fix Issue 3453: Building Subversion 1.6 requires GNU grep 2.5.

* build/ac-macros/berkeley-db.m4
  (SVN_LIB_BERKELEY_DB): Don't use the -o option of grep.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@878595 13f79535-47bb-0310-9956-ffa450edef68

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