abrt-action-check-oops-for-hw-error: i18n, add error check on open()

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Add a manpage for abrt-action-check-oops-for-hw-error

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>