reiserfs: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
index f0c1543..ea0cf8c 100644
--- a/fs/reiserfs/objectid.c
+++ b/fs/reiserfs/objectid.c
@@ -61,7 +61,7 @@
 	/* comment needed -Hans */
 	unused_objectid = le32_to_cpu(map[1]);
 	if (unused_objectid == U32_MAX) {
-		reiserfs_warning(s, "%s: no more object ids", __FUNCTION__);
+		reiserfs_warning(s, "%s: no more object ids", __func__);
 		reiserfs_restore_prepared_buffer(s, SB_BUFFER_WITH_SB(s));
 		return 0;
 	}