[DISKPART]

Implement argument processing. Patch by Lee Schroeder.

The original patch was modified to fix the following issues:
- Indentation and coding style.
- Remove obsolete code: 1. The if-statement around the for-loop is not needed. 2. The call to wcsicmp() is already case insensitive (it is the 'i' in wcsicmp).
- Check the existence of a script file name and a timeout value before trying to process them.
- Call run_script() after the argument list has been processed. This fixes the argument order issue.

See issue #6552 for more details.

svn path=/trunk/; revision=54233