bmildren/resource-agents — comment on commit 72031e5a6a644ce6d9a1ed2ec31d4dfb9bae294b
File:  line 0
By raoulbhatia:

note to myself from http://dev.mysql.com/doc/refman/5.5/en/change-master-to.html:
> Setting MASTER_HOST='' (that is, setting its value explicitly to an empty string) is not the same as not setting MASTER_HOST at all. Beginning with MySQL 5.5, trying to set MASTER_HOST to an empty string fails with an error. Previously, setting MASTER_HOST to an empty string caused START SLAVE subsequently to fail. (Bug #28796).

i do not fully understand your changes :-/
could you please
1. elaborate what you're doing there? is the ra still working with mysql prior to mysql 5.5?
2. rebase against current master/upstream?

thanks,
raoul