updated for version 7.3.687

Problem:    Test 16 fails when $DISPLAY is not set.
Solution:   Skip the test when $DISPLAY is not set.

src/testdir/test16.in

@@ -2,6 +2,7 @@ Tests for resetting "secure" flag after GUI has started.
 For KDE set a font, empty 'guifont' may cause a hang.
 
 STARTTEST
+:if $DISPLAY == "" | e! test.ok | wq! test.out | endif
 :set exrc secure
 :if has("gui_kde")
 :  set guifont=Courier\ 10\ Pitch/8/-1/5/50/0/0/0/0/0

src/version.c

@@ -719,6 +719,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    687,
 /**/
     686,
 /**/