This has been tested in a private repository.
* Use set -e
* Pass -d ${CVSROOT} to all cvs invocations. cvs import needs it.
* cvs import needs to be done in the directory where the tarball
was extracted.
* cvs import does not take a "-F messagefile" option (as cvs commit does);
it needs "-m messagestring".
* The DOIT function now prompts for a yes/no/quit response, and quotes
complex arguments when printing the command.
* When checking the PGP signature, require the correct key to have been used.
* Usability improvements when editing the cvs log message.
* More error checking.
1e91429bfd