msvcrt [2/4]: Change the do-while loop to a while loop as arg can be NULL before the loop

[Alexandre Julliard]

"James Hawkins" <truiken at gmail.com> writes:

> Changelog:
> * Change the do-while loop to a while loop, as arg can be NULL before the loop.

I'm not sure what code checker you are using for these things, but
please don't blindly quiet the warnings, try to understand the code
and fix it the right way. Pretty much every one of your NULL check
patches has the same problem.

-- 
Alexandre Julliard
julliard at winehq.org