- Output per-message (key,value) metadata. Each line starts
- with "#= ", followed by a message id, and a space separated
- list of key=value pairs. pair. Ids, keys and values are hex
- encoded if needed.
+ Output per-message (key,value) metadata. Each line starts
+ with "#= ", followed by a message id, and a space separated
+ list of key=value pairs. pair. Ids, keys and values are hex
+ encoded if needed.