fix for Bourne shell export or reado - (nf)

[johnl at haddock.UUCP]

#R:utzoo:-375700:haddock:27300001:000:390
haddock!johnl    Apr 21 13:01:00 1984

>In System 5 manual page for the shell (sh(1)), the BUGS section
>mentions that readonly without arguments produces the same output
>as export without arguments.

This is also fixed in the SystemV.2 sh, which also allows builtin commands
to have I/O redirected, builds in a lot more stuff such as echo and pwd,
and provides shell-time functions.  Pretty neat stuff.

John Levine, ima!johnl