8006006: [parfait] Memory leak at hotspot/src/share/tools/launcher/wildcard.c

Summary: a simple fix to add FileList_free(fl) before returning NULL.
Reviewed-by: zgu, coleenp, minqi

src/share/tools/launcher/wildcard.c

@@ -368,8 +368,10 @@ wildcardFileList(const char *wildcard)
     const char *basename;
     FileList fl = FileList_new(16);
     WildcardIterator it = WildcardIterator_for(wildcard);
-    if (it == NULL)
+    if (it == NULL) {
+        FileList_free(fl);
         return NULL;
+    }
     while ((basename = WildcardIterator_next(it)) != NULL)
         if (isJarFileName(basename))
             FileList_add(fl, wildcardConcat(wildcard, basename));