Follow-up to r30961, fix a doc string for a file private helper function.
Follow-up to r30961, fix a doc string for a file private helper function.

* subversion/libsvn_client/merge.c
  (filter_merged_revisions): Remove cruft.

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