filters/ccs2needlexml[clusternode]: fix emitting empty-name attr

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
filters/ccs2needlexml: {,expected} votes/quorumd sanity++

We won't propagate literally everything as it may do even more harm.

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
filter: fix interactive vs. std* redirection clash

... default to batch mode when the latter is sensed

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
filter: XSLT messages follow command's output format

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>