patch 8.2.2611: conditions for startup tests are not exactly right

Problem:    Conditions for startup tests are not exactly right.
Solution:   Check for type of GUI instead of MS-Windows. (Ozaki Kiichi,
            closes #7976)
diff --git a/src/version.c b/src/version.c
index 7b0771e..dad2038 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2611,
+/**/
     2610,
 /**/
     2609,