* data/yacc.c: Reformat m4 a little for readability.

* src/lalr.c (build_relations): Correct comment.

src/lalr.c

@@ -262,7 +262,7 @@ build_relations (void)
 	  while (!done)
 	    {
 	      done = true;
-	      /* Each rhs ends in an item number, and there is a
+	      /* Each rhs ends in a rule number, and there is a
 		 sentinel before the first rhs, so it is safe to
 		 decrement RP here.  */
 	      rp--;