Update cpsadduser.py

Corrected call to create_user (added empty uuid parameter)
Show more info on failing call

conpaas-director/cpsadduser.py

@@ -38,9 +38,13 @@
             password, p2 = pprompt()
 
     try:
-        create_user(username, "", "", email, "", password, credit)
-    except sqlalchemy.exc.IntegrityError:
+        create_user(username, "", "", email, "", password, credit, "")
+        # here we don't fill in: fname, lname, affiliation, uuid
+    except sqlalchemy.exc.IntegrityError as e:
         print "User %s already present" % username
-
+        print "Statement: %s" % e.statement
+        print "Orig: %s" % e.orig
+        print "Params: %s" % json.dumps(e.params)
+
     common.chown(common.config_parser.get('director',
         'DATABASE_URI').replace('sqlite:///', ''), 'www-data', 'www-data')