Fix a bug with XML regexp parsing: the path information interpolated within the regular expression must be correctly escaped.
Fix a bug with XML regexp parsing: the path information interpolated within
the regular expression must be correctly escaped.

 * contrib/client-side/svnmerge.py:
   (get_copyfrom): Use re.escape to interpolate the path within the regular
   expression.

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