veyron/services/mgmt/suidhelper/impl/*: ignore system uids

Modify the suidhelper to forbid running applications as system uids.

Change-Id: I3fc63de3f55a22e12149b34fde8810c62f122dab
diff --git a/services/mgmt/suidhelper/impl/args_linux_test.go b/services/mgmt/suidhelper/impl/args_linux_test.go
index 6403af4..4d23174 100644
--- a/services/mgmt/suidhelper/impl/args_linux_test.go
+++ b/services/mgmt/suidhelper/impl/args_linux_test.go
@@ -1,7 +1,7 @@
 package impl
 
 const (
-	testUserName  = "uucp"
-	testUidString = "10"
-	testGidString = "10"
+	testUserName = "uucp"
+	testUid      = 10
+	testGid      = 10
 )