updated for version 7.4.285

Problem:    When 'relativenumber' is set and deleting lines or undoing that,
            line numbers are not always updated. (Robert Arkwright)
Solution:   (Christian Brabandt)

src/misc1.c

@@ -3125,6 +3125,9 @@ changed_common(lnum, col, lnume, xtra)
 	    if (hasAnyFolding(wp))
 		set_topline(wp, wp->w_topline);
 #endif
+	    /* relative numbering may require updating more */
+	    if (wp->w_p_rnu)
+		redraw_win_later(wp, SOME_VALID);
 	}
     }
 

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    285,
 /**/
     284,
 /**/