f4rnham writes:

https://mariadb.atlassian.net/browse/MDEV-7130 MASTER_POS_WAIT(log_name,log_pos,timeout,"connection_name") hangs, does not respect the timeout

Changed also arg_count check for connection_name to prevent same bug if fifth argument is introduced in future

Tests can be reduced to just one master_pos_wait select, it may be better since each this select waits one second timeout (except one for non-existing connection, line 23)

Right, I cleaned up the test case and integrated it into the existing rpl.rpl_master_pos_wait test. Pushed into 10.0, thanks f4rnham! - Kristian.