Added clarifying comment about the purpose of os.Chdir call.
Added clarifying comment about the purpose of os.Chdir call.

The os.Chdir call in mutagen project create is critical to ensure
correct relative path resolution. This commit makes the purpose of that
operation a little bit clearer.

Signed-off-by: Jacob Howard <f862f167b85d41b225785c70d70808bc7337c1fe@havoc.io>

havoc-io/mutagen,havoc-io/mutagen