war on -Werror, part 8: more informals.

General guide: if the parameter name and its typings
match almost exactly, the name goes away.
Otherwise, it's commented out to allow for some
documentation.

src/RageDisplay_Null.cpp

@@ -128,8 +128,8 @@ class RageCompiledGeometryNull : public RageCompiledGeometry
 {
 public:
 	
-	void Allocate( const vector<msMesh> &vMeshes ) {}
-	void Change( const vector<msMesh> &vMeshes ) {}
+	void Allocate( const vector<msMesh> & ) {}
+	void Change( const vector<msMesh> & ) {}
 	void Draw( int iMeshIndex ) const {}
 };