oh, darn.  now the README is out of date.  :)

On Thu, Jul 24, 2003 at 01:19:46AM +0000, Andrew Brown wrote:
>
>Module Name:	src
>Committed By:	atatat
>Date:		Thu Jul 24 01:19:46 UTC 2003
>
>Modified Files:
>	src/usr.bin/cal: cal.1 cal.c
>
>Log Message:
>Reform the Gregorian Reform.  This means that the previously hard
>coded meaning of 1752/09/03 is only a default, and that everything is
>now calculated dynamically.
>
>You can now use -R reform-spec to specify an alternate reform.  Read
>the fine (new) man page for details on this.  There is also a new -r
>option which will make cal print the month (or year, if -y is also
>given) in which the Gregorian Reform started.  I say started only
>because if you apply the reform at 9999/1/22, a chunk of January is
>knocked out, February and March are missing entirely, and April starts
>on the 5th.  The use of -r with -y does pretty much what you'd expect.
>
>Also, implement -d day-of-week so that you can tell cal to start the
>week on something other that a Sunday.  This addresses PR bin/8539 at
>long last.
>
>
>To generate a diff of this commit:
>cvs rdiff -r1.16 -r1.17 src/usr.bin/cal/cal.1 src/usr.bin/cal/cal.c
>
>Please note that diffs are not public domain; they are subject to the
>copyright notices on the relevant files.

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