tashi-admin: change variable from host to user

git-svn-id: https://svn.apache.org/repos/asf/incubator/tashi/trunk@1375634 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/tashi/client/tashi-admin.py b/src/tashi/client/tashi-admin.py
index 0b93a67..5cd50b3 100755
--- a/src/tashi/client/tashi-admin.py
+++ b/src/tashi/client/tashi-admin.py
@@ -48,7 +48,7 @@
 			if (u.name == user):
 				userId = u.id
 	if (userId is None):
-		raise TashiException({'msg':"Unknown user %s" % (str(host))})
+		raise TashiException({'msg':"Unknown user %s" % (str(user))})
 
 	# XXXstroucki permissions for host related stuff?
 	return userId