ach: added help message to achlog
ach: added help message to achlog

git-svn-id: 2651544ca1192b205e0a62ba5b871abae0f93332@3972 4f504ea5-f356-0410-adec-f1b3679f3bb7

golems/ach,golems/ach,chen0510566/ach,chen0510566/ach,golems/ach,golems/ach,chen0510566/ach,chen0510566/ach,golems/ach,chen0510566/ach,golems/ach,chen0510566/ach