git: mount_tmpfs(8): Add a -C option modeled after mount_mfs(8)'s -C option.

[Max Herrgård]

commit b817015321cb0a0a9f23918d70e8562508598944
Author: Sascha Wildner <saw at online.de>
Date:   Sun Sep 19 00:08:54 2010 +0200
    mount_tmpfs(8): Add a -C option modeled after mount_mfs(8)'s -C  
option.
   It will copy the contents of the underlying mount point directory into
    the tmpfs mount.
wow. that's sweet.

--
Max Herrgård