patch 8.0.1142: window toolbar menu gets a tear-off item

Problem:    Window toolbar menu gets a tear-off item.
Solution:   Recognize the window toolbar.
diff --git a/src/menu.c b/src/menu.c
index f07be97..9ed7c27 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -88,7 +88,7 @@
     static int
 menu_is_winbar(char_u *name)
 {
-    return (STRNCMP(name, "WinBar", 5) == 0);
+    return (STRNCMP(name, "WinBar", 6) == 0);
 }
 
     int
@@ -1802,6 +1802,7 @@
 {
     return (!menu_is_popup(name)
 	    && !menu_is_toolbar(name)
+	    && !menu_is_winbar(name)
 	    && *name != MNU_HIDDEN_CHAR);
 }
 
diff --git a/src/version.c b/src/version.c
index 6416490..14edfe4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1142,
+/**/
     1141,
 /**/
     1140,