macos: iterate mdfound packagemakers when spaces are present

macos: iterate mdfound packagemakers when spaces are present

even if we get more than one match, and even if there's a space,
work anyway

Reviewed-on: http://gerrit.openafs.org/6971
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit 745e1bb00350ac481cd0998b1623b6e040fc7312)

Change-Id: Ibd4ca5cbd5cee45793735cede8cf488a944add3c
Reviewed-on: http://gerrit.openafs.org/6972
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>