patch 8.0.0354: test to check that setting termcap key fails sometimes

Problem:    Test to check that setting termcap key fails sometimes.
Solution:   Check for "t_k1" to exist. (Christian Brabandt, closes #1459)
diff --git a/src/testdir/test_assign.vim b/src/testdir/test_assign.vim
index 4a4c644..efc9d08 100644
--- a/src/testdir/test_assign.vim
+++ b/src/testdir/test_assign.vim
@@ -15,7 +15,7 @@
   call assert_match('t_te.*^[[yes;', execute("set termcap"))
   let &t_te = old_t_te
 
-  if !has('gui_running')
+  if exists("+t_k1")
     " Key code
     let old_t_k1 = &t_k1
     let &t_k1 = "that"
diff --git a/src/version.c b/src/version.c
index da1ca4b..9494e03 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    354,
+/**/
     353,
 /**/
     352,