* subversion/libsvn_client/merge.c   (normalize_merge_sources): Update docstring with some details about     the 'source' parameter, and add a related FIXME comment.
* subversion/libsvn_client/merge.c
  (normalize_merge_sources): Update docstring with some details about
    the 'source' parameter, and add a related FIXME comment.

Found by: julianfoad

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion