Log Message:
Updated luit to 2.0.20160508.

2016/05/08 -

    adapt Solaris fix for C11 changes from xterm #325.
    modify parseArgs to check for a special case, e.g., from xterm,
    where a shell command that cannot be exec'd is passed as a
    single parameter. For that case, run the command via the shell.
    reset IEXTEN when turning off canonical mode, needed to make
    lnext control/V work consistently on BSD platforms (report/patch
    by Christian Weisgerber).
    updated configure macros:

    CF_FUNC_POLL
        add a fallback to checking with posix_openpt(), in case
        someone's running the configure script in batch mode.
    CF_LD_RPATH_OPT
        change FreeBSD to use -Wl,-rpath rather than -rpath option.
        According to FreeBSD #178732, either works since FreeBSD
        4.x; however scons does not accept anything except the
        -Wl,-rpath form.
    CF_WITH_MAN2HTML
        use configured shell rather than /bin/sh
    CF_XOPEN_SOURCE
        add a case for OS/2

    update config.guess, config.sub