[PATCH] mkfs: reject emptry suboption arguments

[Dave Chinner]

On Mon, Aug 15, 2011 at 02:24:15PM -0400, Christoph Hellwig wrote:
> We require the argument to suboptions to not only exist, but also contain
> a non-empty string, as cvtnum can't handle empty strings properly.  Also add
> the missing argument check to the -l agnum suboption which was lacking it.
> 
> Reported-by: Chris Pearson <kermit4 at gmail.com>
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com