updated for version 7.3.198
Problem:    No completion for ":lang".
Solution:   Get locales to complete from. (Dominique Pelle)
diff --git a/src/eval.c b/src/eval.c
index 2432ad3..a1912fd 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -911,6 +911,7 @@
     hash_clear(&compat_hashtab);
 
     free_scriptnames();
+    free_locales();
 
     /* global variables */
     vars_clear(&globvarht);