[PATCH] xfstests: fix _mount_ops_filter() to support $TEST_DIR containing -o

[Ben Myers]

On Tue, Jul 02, 2013 at 11:44:57PM +0200, Koen De Wit wrote:
> If multiple mount options are given with multiple -o parameters,
> _mount_ops_filter concatenates them by replacing all -o's with a comma
> (except for the first -o).
> 
> If $TEST_DIR contains "-o" (e.g. /mnt/test-os/) you get errors like this:
> 
>    # ./check generic/002
>      mount: mount point /mnt/test,s/ does not exist
>      common/rc: retrying test device mount with external set
>      mount: mount point /mnt/test,s/ does not exist
>      common/rc: could not mount /dev/sdc3 on /mnt/test-os/
> 
> Fix it by only replacing -o's that are preceded by at least one space.
> 
> Signed-off-by: Koen De Wit <koen.de.wit at oracle.com>

Reviewed-by: Ben Myers <bpm at sgi.com>