dvgrab.1 | 12 6 + 6 - 0 !
1 file changed, 6 insertions(+), 6 deletions(-)

 made manpage groff compatible.

dvgrab.cc | 1 1 + 0 - 0 !
1 file changed, 1 insertion(+)

 added a sleep to give cerr a chance to flush. the help message
will not be complete otherwise.

error.cc | 9 6 + 3 - 0 !
1 file changed, 6 insertions(+), 3 deletions(-)

 fixes not working throw of a string, so first print the message and
than throw the exception. This is similar behaviour than before.