Make SystemErrErrorHandler emit GNU-format errors
Make SystemErrErrorHandler emit GNU-format errors

tripu/validator,takenspc/validator,takenspc/validator,validator/validator,YOTOV-LIMITED/validator,tripu/validator,sammuelyee/validator,tripu/validator,sammuelyee/validator,YOTOV-LIMITED/validator,tripu/validator,YOTOV-LIMITED/validator,validator/validator,sammuelyee/validator,YOTOV-LIMITED/validator,YOTOV-LIMITED/validator,tripu/validator,validator/validator,takenspc/validator,sammuelyee/validator,sammuelyee/validator,takenspc/validator,validator/validator,takenspc/validator,validator/validator