[nautilus] file-utilities: Fix leak and use macros

[António Fernandes <antoniof src gnome org>]

commit 19791538b4ddeab4d09b3505a2ea331d0384c186
Author: Ignacy Kuchciński <ignacykuchcinski gmail com>
Date:   Wed Aug 3 17:00:39 2022 +0200

    file-utilities: Fix leak and use macros

 src/nautilus-file-utilities.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/src/nautilus-file-utilities.c b/src/nautilus-file-utilities.c
index b79c8728d..6043a11e9 100644
--- a/src/nautilus-file-utilities.c
+++ b/src/nautilus-file-utilities.c
@@ -56,7 +56,7 @@ nautilus_uri_parse (const char  *uri,
                     guint16     *port,
                     char       **userinfo)
 {
-    char *tmp_str;
+    g_autofree char *tmp_str = NULL;
     const char *start, *p;
     char c;
 
@@ -92,8 +92,6 @@ nautilus_uri_parse (const char  *uri,
         return FALSE;
     }
 
-    g_free (tmp_str);
-
     /* Decode hier-part:
      *  hier-part   = "//" authority path-abempty
      */
@@ -1100,7 +1098,7 @@ get_message_for_two_content_types (const char * const *content_types)
 gboolean
 should_handle_content_type (const char *content_type)
 {
-    GAppInfo *default_app;
+    g_autoptr (GAppInfo) default_app = NULL;
 
     default_app = g_app_info_get_default_for_type (content_type, FALSE);