Improper port handling in LDAP

[dhain]

When attempting to connect to an LDAP server with a nonstandard port number, I get the following in the logs:

time="2019-01-17T19:01:24Z" level=error msg="Error while handling auth request" error="Unable to connect to LDAP: LDAP Result Code 200 \"Network Error\": dial tcp: address localhost:3389:3389: too many colons in address"

A quick glance at the code reveals the problem, in auth_ldap.go in dial(), the host variable has the colon and port number in it already, and gets the port number appended a second time by the Sprintf calls.

[Luzifer]

Thanks for bringing this to my attention! It has been fixed in v0.15.1.

[dhain]

Thanks for the quick turn-around! Confirmed fixed.