[cli/puppetfile] Only pass :trace to TaskRunner

Previously, passing `-v` or other commands when running `r10k puppetfile *`
could result in this error:

    r10k puppetfile install --help --trace
    Error while running: #<RuntimeError: Unrecognized options: help>

This was due to overly greedy code passing too many options. This commit
restricts the options being passed to the TaskRunner.
[cli] (GH-164) Make `--help` globally respected
Merge branch 'bug/1.2.x/gh-164-global-help-flag' into 1.2.x
Merge branch 'bug/1.2.x/gh-165-puppetfile-verbose-option' into 1.2.x