[glib: 9/11] Fix signedness warning in gio/gdbusdaemon.c:is_key()

[Philip Withnall <pwithnall src gnome org>]

commit 6d08c2f5ba6d5bbaf6805008d022cc0409414de3
Author: Emmanuel Fleury <emmanuel fleury gmail com>
Date:   Tue Nov 17 11:23:47 2020 +0100

    Fix signedness warning in gio/gdbusdaemon.c:is_key()
    
    gio/gdbusdaemon.c: In function ‘is_key’:
    gio/gdbusdaemon.c:213:11: error: comparison of integer expressions of different signedness: ‘gsize’ {aka 
‘long unsigned int’} and ‘long int’
      213 |   if (len != key_end - key_start)
          |           ^~

 gio/gdbusdaemon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gio/gdbusdaemon.c b/gio/gdbusdaemon.c
index 7ae55ece8..f62b5ce0e 100644
--- a/gio/gdbusdaemon.c
+++ b/gio/gdbusdaemon.c
@@ -210,7 +210,8 @@ is_key (const char *key_start, const char *key_end, const char *value)
 {
   gsize len = strlen (value);
 
-  if (len != key_end - key_start)
+  g_assert (key_end >= key_start);
+  if (len != (gsize) (key_end - key_start))
     return FALSE;
 
   return strncmp (key_start, value, len) == 0;