patch 7.4.1737

Problem:    Argument marked as unused is used.
Solution:   Remove UNUSED.

src/message.c

@@ -766,7 +766,7 @@ delete_first_msg(void)
  * ":messages" command.
  */
     void
-ex_messages(exarg_T *eap UNUSED)
+ex_messages(exarg_T *eap)
 {
     struct msg_hist *p;
     char_u	    *s;

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1737,
 /**/
     1736,
 /**/