-[8.50 Beta5] wrong renaming alert

[onlyisu]

When rename files with a name including the following illegal characters
\/:*?"<>|

totalcmd prompts "Error: Cannot write *.*! Please remove the write protection!"

I think this may confuse the users.

[ghisler(Author)]

Sorry, there is no function on Windows to find out forbidden characters. And \/ are NOT forbidden, thy tell TC to move the file to a subdir. So I will not change this error, sorry.