[PATCH 5/8] xfstests: use command line option for setting extra space

[Christoph Hellwig]

On Mon, Nov 21, 2011 at 10:31:25PM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner at redhat.com>
> 
> Allow the extra free space to leave in large scratch filesystems to
> be specified by a command line option rather than just via an
> environment variable.
> 
> Signed-off-by: Dave Chinner <dchinner at redhat.com>

This probably should be documented in the help text.