fixed 6136 23.3.90
quit

Was reported a second time
(http://article.gmane.org/gmane.emacs.help/80250) and then fixed by
576bce32 (2011-03-19 "Fix emerge.el on MS-Windows and MS-DOS...")

Eli Zaretskii <eliz@gnu.org> writes:

> I think emerge-protect-metachars should simply use
> shell-quote-argument, on all platforms.  Then it won't need to
> distinguish between the different flavors, and it won't need to know
> which characters need protection, something that is shell-dependent
> and thus tricky even on Unix.

But the non-Windows case still uses emerge-metachars.  Should we make it
same on all platforms: