patch 8.2.2347: build failure without GUI

Problem:    Build failure without GUI.
Solution:   Add #ifdef.
diff --git a/src/version.c b/src/version.c
index 56522d9..319e65e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2347,
+/**/
     2346,
 /**/
     2345,