stsp (applying order of file name conversion)

Suggested

r1882234

r1882234 | futatuki | 2020-10-04 14:12:07 +0000 (Sun, 04 Oct 2020)

Fix file name to edit from utf8 to local style.

* subversion/libsvn_subr/cmdline.c
  (svn_cmdline__edit_file_externally):
  Apply svn_path_cstring_from_utf8() to target file name after escape_shell().
  (svn_cmdline__edit_string_externally):
  Fix order to apply svn_path_cstring_from_utf8() and escape_shell().

Suggested by: stsp (applying order of file name conversion)
Reviewed by: stsp (svn_cmdline__edit_file_externally)