can't parse git urls that have a different ssh port

[bdangit]

input: ssh://git@someplace.com:2289/bdangit/quickstart-generic.git

expect:

host = someplace.com:2289
owner = bdangit
repoName = quickstart-generic
branch = master

error:

api_1    | 170320/144952.596, (1490021391276:c49c65e21df8:17:j0hql2eb:10010) [request,server,error] data: Error: 404 Reason "{"error":"404 Not Found"}" Caller "_parseUrl"
api_1    |     at checkResponseError (/usr/src/app/node_modules/screwdriver-scm-gitlab/index.js:62:11)
api_1    |     at breaker.runCommand.then (/usr/src/app/node_modules/screwdriver-scm-gitlab/index.js:289:13)
api_1    |     at process._tickDomainCallback (internal/process/next_tick.js:129:7)
api_1    | 170320/144951.276, [response,api,pipelines] http://192.168.79.140:9001: post /v4/pipelines {} 500 (1324ms)