Subject: bug#20744: shell-quote-argument in Emacs 24.5 and Emacs 25 on Windows cannot figure out path correctly

From: Glenn Morris <[email-masked]>
Date: Sun, 07 Jun 2015 20:47:09 -0400

I think the actual answer for Bash is the "metacharacters" list in the
Bash manual, plus the "!" character (for history), as per:

http://www.gnu.org/software/bash/manual/html_node/Quoting.html

That doesn't include ":", but then there's those "really weird shells",
whatever they may be...