Known issues
============

*   vr() does not handle the newer version of Subversion repositories which
    only have a .svn directory at the root level.
*   The terminfo files probably still do not work on NetBSD (needs retesting
    and manual page reading)
*   man(1) completion doesn't work on OpenBSD as manpath(1) isn't a thing on
    that system; need to find some way of finding which manual directories
    should be searched at runtime, if there is one
*   The Makefile scripts are unwieldy in places; would be nicer to have them
    call a shell script in a subdirectory, maybe "test"