Factor out a helper function.
Factor out a helper function.

* subversion/libsvn_wc/props.c
  (write_tmp_file): New, extracted from maybe_generate_propconflict().
  (maybe_generate_propconflict): Use write_tmp_file instead of in-line code.
    Eliminate a related function-wide variable and reduce scope of another.

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