svm: address review comments

Author: zapster

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/JavaMainWrapper.java

@@ -166,7 +166,6 @@ public List<String> getInputArguments() {
     }
 
     public static void invokeMain(String[] args) throws Throwable {
-        // This needs to be a local and not a parameter to allow proper constant folding
         JavaMainSupport javaMainSupport = ImageSingletons.lookup(JavaMainSupport.class);
         if (javaMainSupport.mainNonstatic) {
             Object instance = javaMainSupport.javaMainClassCtorHandle.invoke();

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/NativeImageGeneratorRunner.java

@@ -478,7 +478,7 @@ private int buildImage(ImageClassLoader classLoader) {
                                 throw UserError.abort(ex.getCause(),
                                                 "Method '%s.%s' is declared as the main entry point but it can not be found. " +
                                                                 "Make sure that class '%s' is on the classpath and that non-private " +
-                                                                "method '%s()' or '%s(String[])' exists in that class.",
+                                                                "method '%s()' or '%s(String[])'.",
                                                 mainClass.getName(),
                                                 mainEntryPointName,
                                                 mainClass.getName(),