nfs: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 5ed86ac..2a4a024 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -405,7 +405,7 @@
 	return 0;
 
  out_err:
-	dprintk("%s: statfs error = %d\n", __FUNCTION__, -error);
+	dprintk("%s: statfs error = %d\n", __func__, -error);
 	unlock_kernel();
 	return error;
 }