[PATCH] kernel32/winerror: Correct capitalization of "Windows" in ERROR_OLD_WIN_VERSION string.

[Marvin]

Hi,

While running your changed tests, 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=50482

Your paranoid android.

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

kernel32:
loader.c:3850: Test failed: kernel32.dll:2: wrong OptionalHeader.DataDirectory[i].Size 1ada48 / 1adb30

=== debian9 (32 bit Chinese:China report) ===

kernel32:
loader.c:3850: Test failed: kernel32.dll:2: wrong OptionalHeader.DataDirectory[i].Size 1ada48 / 1adb30

=== debian9 (32 bit WoW report) ===

kernel32:
loader.c:3850: Test failed: kernel32.dll:2: wrong OptionalHeader.DataDirectory[i].Size 1ada48 / 1adb30

=== debian9 (64 bit WoW report) ===

kernel32:
loader.c:3850: Test failed: kernel32.dll:2: wrong OptionalHeader.DataDirectory[i].Size 1ada48 / 1adb30