(msys) perl readline creates sys$command files w/o STDIN connected

This fixes [perl #115900].
Rational findConsole dispatch for Term::ReadLine.

Back in 5.002 or so, if we didn't find /dev/tty and weren't on
Windows, the console was assumed to be sys$command, which only
makes sense on VMS (possibly $^O didn't work yet on VMS?).

Later accretions have assumed that the sys$command default meant
something other than laziness and a second if block with various
specific overrides was added, some of which set the console back
to undef after its having been set to sys$command.

That can all be avoided by simply checking we're on VMS before
setting the console to sys$command and letting it default to
STDIN for cases where we don't know of something else specific
that it should be.
Bump Term::ReadLine version.
Version 1.11
Standardize spelling of 'supersede' throughout the distribution.

Change two instances of 'supercede' to match many more instances of the
former.
Bump version of Term::ReadLine

commit 20a5039af69d81e9003664af771f2dd5e0446c2b changed this module's
pod but  didn't bump the version.
Version 1.12