Ensure that the copy of the CURLOPT_INTERFACE string is freed if we
decide we can reuse an existing connection.

---
 lib/url.c |    1 +
 1 file changed, 1 insertion(+)
diff --git a/lib/url.c b/lib/url.c
index 87b8701..567f1de 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -4779,6 +4779,7 @@ static void reuse_conn(struct connectdata *old_conn,
   Curl_safefree(old_conn->passwd);
   Curl_safefree(old_conn->proxyuser);
   Curl_safefree(old_conn->proxypasswd);
+  Curl_safefree(old_conn->localdev);
 
   Curl_llist_destroy(old_conn->send_pipe, NULL);
   Curl_llist_destroy(old_conn->recv_pipe, NULL);
-- 
1.7.10
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