Format the help output a bit

[Lavesson]

It looks slightly messy right now. Maybe by increasing the spacing between the two columns to avoid the row breaks. Currently, it looks something like this:

usage: dirpart [-h] [-o [out]] [-m] [-e [pattern]] [-s [folder]] [in]

Partition files into A-Z sub directories

positional arguments:
  [in]                  The directory to partition

optional arguments:
  -h, --help            show this help message and exit
  -o [out], --out [out]
                        Output dir. Defaults to current folder
  -m, --move            Move files instead of copying
  -e [pattern], --regexp [pattern]
                        Apply to files matching the regex only
  -s [folder], --special [folder]
                        Use a special folder to put files starting with one or
                        more dots. Defaults to '!misc'

I'd much rather see something like this:

usage: dirpart [-h] [-o [out]] [-m] [-e [pattern]] [-s [folder]] [in]

Partition files into A-Z sub directories

positional arguments:
  [in]                  The directory to partition

optional arguments:
  -h, --help                         show this help message and exit
  -o [out], --out [out]              Output dir. Defaults to current folder
  -m, --move                         Move files instead of copying
  -e [pattern], --regexp [pattern]   Apply to files matching the regex only
  -s [folder], --special [folder]    Use a special folder to put files starting with
                                     one or more dots. Defaults to '!misc'