git-update-dirs: Include @ARGV in @Dirs even when -r is used

Should probably make it avoid duplicates too.

f92e688e-2509-11e3-b89e-f0def1836eb5
git-update-dirs: Strip duplicated directories

This could occur if they're specified several times on the command line
or in combination with -r. It won't strip away the "./" prefix created
by find(1), but this can be fixed by specifying "./" when referring to
local directories.

27246038-250d-11e3-a0e2-f0def1836eb5
Merge branch 'git-update-dirs.add-argv'

* git-update-dirs.add-argv:
  git-update-dirs: Strip duplicated directories
  git-update-dirs: Include @ARGV in @Dirs even when -r is used

f38a35ee-250d-11e3-bfcc-f0def1836eb5