David Mudrák 784883e1ee MDL-63174 user: user_create_user to throw exception on empty username
The core API function user_create_user() did not check the case when the
given username was empty.

Also adding a missing string 'usernamelowercase' for the existing lower
case check and unit tests.
2018-08-17 13:24:31 +02:00
..