patch 9.0.0368: old Coverity warning for using NULL pointer

Problem:    Old Coverity warning for using NULL pointer.
Solution:   Bail out if dictionary allocation fails.
diff --git a/src/version.c b/src/version.c
index e8f40e4..b2e28e2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -708,6 +708,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    368,
+/**/
     367,
 /**/
     366,