$ nncp-rm [options] [-older X] @{-all|-node NODE@} -nock
$ nncp-rm [options] [-older X] @{-all|-node NODE@} -area
$ nncp-rm [options] [-older X] @{-all|-node NODE@} @{-rx|-tx@} [-hdr]
-$ nncp-rm [options] [-older X] @{-all|-node NODE@} -pkt <<EOF
+$ nncp-rm [options] @{-all|-node NODE@} -pkt <<EOF
+$ nncp-rm [options] @{-all|-node NODE@} -ack
PKT1
PKT2
NODEx/PKT3