The test-vanilla-compliance build target (also invoked by the "test"
build target) and script can be used to test the level WAD files for
vanilla compliance. Also, a subset of the errors found can be fixed by
the "fix" build target. To summarize:
make test # Run all tests
make test-vanilla-compliance # Run test-vanilla-compliance
make fix # Run all fixes
make fix-vanilla-compliance # Run test-vanilla-compliance -f
