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

[James Hawkins]

Hi,

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

 dlls/msvcrt/process.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

--
James Hawkins
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