add configurable option and defaults for git 'transfer-unpacklimit' to omnibus
This is to change the default transmit behavior of git to set the unpackLimit to 1
/cc: @pcarranza @jacobvosmaer-gitlab
closes gitlab-com/infrastructure#313
This is to change the default transmit behavior of git to set the unpackLimit to 1
/cc: @pcarranza @jacobvosmaer-gitlab
closes gitlab-com/infrastructure#313