co -D 'the time revision 5.4 of a.c was committed'

[bill pursell]

Currently, the thing that annoys me about CVS is that I can't
seem to get a copy of the tree as it was at a certain time.
That's not quite what I mean.  Suppose I want to know what
the module foo looked like when a particular revision, say 5.4,
of file a.c was checked in.  Currently, I have to checkout foo, look
at the log for a.c to determine the time that revision 5.4 was
committed, and then checkout the module with -D for that time.
3 steps instead of 1.  How does one do that directly?