Merge pull request #10225 from jrose-apple/this-sort-of-nicety

Author: swift-ci

test/lit.cfg

@@ -1106,4 +1106,4 @@ if platform.system() == 'Linux':
         config.available_features.add("LinuxDistribution=" + distributor + '-' + release)
         lit_config.note('Running tests on %s-%s' % (distributor, release))
 
-lit_config.note("Available features: " + ", ".join(config.available_features))
+lit_config.note("Available features: " + ", ".join(sorted(config.available_features)))