pgindent run for 9.4

This includes removing tabs after periods in C comments, which was
applied to back branches, so this change should not effect backpatching.

src/backend/executor/nodeLimit.c

@@ -113,7 +113,7 @@ ExecLimit(LimitState *node)
 
 			/*
 			 * The subplan is known to return no tuples (or not more than
-			 * OFFSET tuples, in general).	So we return no tuples.
+			 * OFFSET tuples, in general).  So we return no tuples.
 			 */
 			return NULL;