svcrpc: treat uid's as unsigned

We should consistently treat uid's as unsigned--it's confusing when
the display of uid's in the cache contents isn't consistent with their
representation in upcalls.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 97f0e9e..afdcb04 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -624,7 +624,7 @@
 	else
 		glen = 0;
 
-	seq_printf(m, "%d %d:", ug->uid, glen);
+	seq_printf(m, "%u %d:", ug->uid, glen);
 	for (i = 0; i < glen; i++)
 		seq_printf(m, " %d", GROUP_AT(ug->gi, i));
 	seq_printf(m, "\n");