Update SemaDeclCXX.cpp

Author: gmh5225

clang/lib/Sema/SemaDeclCXX.cpp

@@ -10416,7 +10416,7 @@ void Sema::DiagnoseHiddenVirtualMethods(CXXMethodDecl *MD) {
 
   // Don't diagnose hidden virtual methods in Microsoft extensions mode.
   if (getLangOpts().MicrosoftExt)
-	return;
+    return;
 
   if (MD->isInvalidDecl())
     return;