Fix a spurious segfault on Windows.
This can be seen, e.g., when running regression_tests.pd gui-less in Windows, as our CI script does. The easy fix is to just bypass the gui finalization code in glob_quit() when running gui-less (sys_nogui).
windows-segfault-fix in 229 minutes and 4 seconds (queued for 3 seconds)6 jobs for
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