filelog -- List revision history of files
p4 filelog [ -i -l -m maxRevs ] file ...
List the revision history of the files named, working backwards
from the latest revision to the first.
The -i flag follows branches. If a file was created by branching,
'p4 filelog' also lists the revisions of the source file, but
only those revisions leading up to the branch point.
The -l flag produces long output with the full text of the
changelist descriptions.
The -m maxRevs displays at most 'maxRevs' revisions per file.