Add --long options to shlog wrapper script.

Add long options to shlog wrapper script. The wrapper script should support --longoptions:

Usage: shlog [Options] [-v] [-x] Command [CommandArguments]
Run a command, logging output to rotating log files.

Options:
-b --background Run script in background (Default foreground).
-c --logcount Log file count (Default 10).
-f --logfile Log file name (Default ~/{Script}.log).
-q --quiet Quiet (No terminal input/output).
-s --logsize Log file size (Default 1MB).

-v --verbose Verbose.
-x --debug Debug.