python3Packages.pygame: add traceback for segfaults in checkPhase

+2
+2
pkgs/development/python-modules/pygame/default.nix
··· 106 # No audio or video device in test environment 107 export SDL_VIDEODRIVER=dummy 108 export SDL_AUDIODRIVER=disk 109 110 ${python.interpreter} -m pygame.tests -v \ 111 --exclude opengl,timing \
··· 106 # No audio or video device in test environment 107 export SDL_VIDEODRIVER=dummy 108 export SDL_AUDIODRIVER=disk 109 + # traceback for segfaults 110 + export PYTHONFAULTHANDLER=1 111 112 ${python.interpreter} -m pygame.tests -v \ 113 --exclude opengl,timing \