swap first two tests - does the first one still fail?

Signed-off-by: Serge Hallyn <serge@hallyn.com>

tests/su/01/run_su.exp

@@ -1,7 +1,7 @@
 #!/usr/bin/expect
 
 set timeout 2
-expect_after default {puts stderr "\nFAIL"; exit 1}
+expect_after default {puts stderr "\nFAIL (timeout)"; exit 1}
 
 if {$argc != 3} {
 	puts "usage: run_su.exp <user> <password> <prompt>"