patch 9.0.0152: warning for unused argument in small build

Problem:    Warning for unused argument in small build.
Solution:   Add "UNUSED".

src/drawline.c

@@ -369,7 +369,7 @@ draw_screen_line(win_T *wp, winlinevars_T *wlv)
  * Start a screen line at column zero.
  */
     static void
-win_line_start(win_T *wp, winlinevars_T *wlv)
+win_line_start(win_T *wp UNUSED, winlinevars_T *wlv)
 {
     wlv->col = 0;
     wlv->off = (unsigned)(current_ScreenLine - ScreenLines);

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    152,
 /**/
     151,
 /**/