rdiff examples
--------------

   Suppose you receive mail from foo@bar.com asking for an update from
release 1.2 to 1.4 of the tc compiler.  You have no such patches on
hand, but with CVS that can easily be fixed with a command such as this:

     $ cvs rdiff -c -r FOO1_2 -r FOO1_4 tc | \
     $$ Mail -s 'The patches you asked for' foo@bar.com

   Suppose you have made release 1.3, and forked a branch called
`R_1_3fix' for bugfixes.  `R_1_3_1' corresponds to release 1.3.1, which
was made some time ago.  Now, you want to see how much development has
been done on the branch.  This command can be used:

     $ cvs patch -s -r R_1_3_1 -r R_1_3fix module-name
     cvs rdiff: Diffing module-name
     File ChangeLog,v changed from revision 1.52.2.5 to 1.52.2.6
     File foo.c,v changed from revision 1.52.2.3 to 1.52.2.4
     File bar.h,v changed from revision 1.29.2.1 to 1.2