PythonOptions: adopt usageSyntax for options

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/PythonLanguage.java

@@ -112,7 +112,7 @@
                 dependentLanguages = {"nfi", "llvm"}, //
                 interactive = true, internal = false, //
                 contextPolicy = TruffleLanguage.ContextPolicy.SHARED, //
-                fileTypeDetectors = PythonFileDetector.class,
+                fileTypeDetectors = PythonFileDetector.class, //
                 website = "https://www.graalvm.org/python/")
 @ProvidedTags({
                 StandardTags.CallTag.class,