patch 8.2.0908: crash when changing the function table while listing it

Problem:    Crash when changing the function table while listing it.
Solution:   Bail out when the function table changes. (closes #6209)
diff --git a/src/version.c b/src/version.c
index 3fccc70..20c0e0d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    908,
+/**/
     907,
 /**/
     906,