[PATCH] include/wine/test.h: fix winetest_argv[1] in case of single test

[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=108945

Your paranoid android.


=== debian11 (build log) ===

../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
Task: The win32 Wine build failed

=== debian11 (build log) ===

../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
../wine/include/wine/test.h:695:42: error: initializer element is not constant
../wine/include/wine/test.h:695:51: error: initializer element is not constant
Task: The wow64 Wine build failed