[tex-live] Oddities with tlmgr generate

[Karl Berry]

    should probably read
    sub kpsewhich {
    ...
      my $ret = `kpsewhich -var-value=$var`;

    Note the missing single quotes. If the single quotes are present, kpsewhich
    returns nothing (at least on Windows). 

I removed the kpsewhich() Perl function.

    The generate action is the only part of tlmgr.pl that seems to call the
    kpsewhich function; the rest uses `kpsewhich -var-value=XYZ` directly
    (without the quotes).

Those two calls are all I saw too.  I changed them to use -var-value
like everywhere else.

Thanks,
Karl