On the diff-optimizations-bytes branch:
On the diff-optimizations-bytes branch:

Make diff3 (three-way diff) work with prefix/suffix scanning.

* subversion/libsvn_diff/diff3.c
  (svn_diff_diff3): Call datasources_open to open the three datasources
   together, and let it scan for identical prefix and suffix. Use the number
   of prefix_lines to adjust the starting offsets of the existing algorithm,
   and to insert a diff chunk of type "common" for the prefix.


git-svn-id: f8c1fd103bd63c05f96ffc29bcb6cb3a9d1837f9@1051789 13f79535-47bb-0310-9956-ffa450edef68

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