[nautilus] eel-string: don't use deprecated gatomic API

[Cosimo Cecchi <cosimoc src gnome org>]

commit e3f055c886e9db0c105de59e80573a9715c41060
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Jun 3 17:41:03 2011 -0400

    eel-string: don't use deprecated gatomic API

 eel/eel-string.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/eel/eel-string.c b/eel/eel-string.c
index d45c621..1a7d65d 100644
--- a/eel/eel-string.c
+++ b/eel/eel-string.c
@@ -900,7 +900,7 @@ eel_ref_str_unref (eel_ref_str str)
 	} else if (old_ref == 0x80000001) {
 		G_LOCK (unique_ref_strs);
 		/* Need to recheck after taking lock to avoid races with _get_unique() */
-		if (g_atomic_int_exchange_and_add (count, -1) == 0x80000001) {
+		if (g_atomic_int_add (count, -1) == 0x80000001) {
 			g_hash_table_remove (unique_ref_strs, (char *)str);
 			g_free ((char *)count);
 		}