[PATCH] relayfs documentation typo

The format of the data logged into the channel buffers is completely

up to the relayfs client; relayfs does however provide hooks which

allow clients to impose some stucture on the buffer data.  Nor does

allow clients to impose some structure on the buffer data.  Nor does

relayfs implement any form of data filtering - this also is left to

the client.  The purpose is to keep relayfs as simple as possible.