/tmp and /var/tmp are the same, consistently use the former in both
build/recover and documentation.

ok millert@, tb@, martijn@ and schwarze@

Remove msgcat from the documentation.

Remove cscope support in vi.

It makes no sense to keep support for a non-base tool in base, especially
for a feature that few if any people use.

Remove the vi perl api.

There have been various build errors for coming on two years now.
It doesn't work and nobody has expressed any interest in saving it.

From natano; ok millert@

from natano:
The 'tcl' command in vi does nothing, except to print the message
"Vi was not loaded with a Tcl interpreter". Printing the standard
message for unknown commands would be equally descript

from natano:
The 'tcl' command in vi does nothing, except to print the message
"Vi was not loaded with a Tcl interpreter". Printing the standard
message for unknown commands would be equally descriptive with the
benefit of reducing code size.

show more ...

subsitution -> substitution;
from Yoshihiro Ota, freebsd pr bin/130874

nvi 1.73

bring vi/ex up to 1.71