Try to launch gvim instead vim internally by this script, but it not work.

[tangyi217]

When try to use "gvim" instead of "vim" in below line in this script:
vim_rc = subprocess.call(['gvim', '-R', '--cmd', 'au VimEnter * so ' + vim_file_name])

gvim is lunched, but with an error to say that tmp file can not found.....

After i made below change in this script, gvim works fine. Can you have look at it and consider to merge it into master later ?

.....
vim_rc = os.EX_OK
import re
pattern = re.compile("gvim")

if changed_file:
    if pattern.search(script_name):
         vim_rc = subprocess.call(['gvim', '-R', '--cmd', 'au VimEnter * so ' + vim_file_name])
    else:
         vim_rc = subprocess.call(['vim',  '-R', '--cmd', 'au VimEnter * so ' + vim_file_name])
         shutil.rmtree(temp_dir)  ### in gvim case, we can NOT call this which will delete files which is still used by gvim.
sys.exit(vim_rc)