patch 8.0.0214: leaking memory when syntax cluster id is unknown

Problem:    Leaking memory when syntax cluster id is unknown. (Coverity)
Solution:   Free the memory.
diff --git a/src/version.c b/src/version.c
index 592c77c..918bee4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    214,
+/**/
     213,
 /**/
     212,