OK halex

Found by landry
OK deraadt

While here, convert `` to $().
OK halex

OK halex

OK halex, krw

Based on a diff from Anthony Coulter.
OK krw, halex

OK tb

- comments relevant to other brands of UNIX
- the no-op KSH_VERSION case-block, we only have pdksh
- the case-block for setting aliases based on UNIX brand
together with a comment that falsely encourages to modify this
file instead of putting stuff in $HOME/.kshrc
OK krw@ halex@

to maintain. The eval's must stay to make the aliases expand at run
time instead of at parse time.
ok krw@

eval seems to be needed for reaching the aliases which otherwise aren't
available from within functions...

Eval'ing constant expressions is not such a case.
"...fine with me" krw@

assignments function calls are not surprisingly polluting your shell environment
"makes sense" krw@, ok tedu@ guenther@

urls with spaces work.  ok sthen@

and now that the behaviour of -g has changed to be more in line
with posix, we get group ID by default anyway;
kick started by PR 5784 from Jacek Masiulaniec;
discussed with otto and sobrado;
ok deraadt millert

they do this by sending to stdout. commands like: 'ftp -o - ftp://blah/foo>foo'
do not like having data added to the output stream.
since we only define these two functions in an environment where /dev/tty
exists, send output to /dev/tty to make sure it does not corrupt the output
stream of commands.

xterm or equivalent