[RFC 1/2] user32/combo: Apply code formatting from comctl32

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=44169

Your paranoid android.


=== debian9 (32 bit Wine report) ===

user32:
menu.c:2354: Test failed: test 27
menu: Timeout