Fixed skipped lines consist of a leading # followed by any non-directive PP-token sequence.

src/cc65/preproc.c

@@ -1296,7 +1296,9 @@ void Preprocess (void)
                 continue;
             }
             if (!IsSym (Directive)) {
-                PPError ("Preprocessor directive expected");
+                if (!Skip) {
+                    PPError ("Preprocessor directive expected");
+                }
                 ClearLine ();
             } else {
                 switch (FindPPToken (Directive)) {