Why the port build log file has terminal escape sequences?

[Chris Rees]

On 3 February 2013 04:14, Yuri <yuri at rawbw.com> wrote:
> I redirect the log into the file: portupgrade -a 2>&1 | tee portupgrade.log
> However, log still has escape sequences as if it was printed to the
> terminal:
> ^[[0m^[[34m^[[1mGenerating moc_mainwindow.cpp^M
> ^[[0m^[[34m^[[1mGenerating subscriptionlistdelegate.moc^M
> ^[[0m^[[34m^[[1mGenerating knconfigwidgets.moc^M
> ^[[0m^[[34m^[[1mGenerating previewdialog.moc^M
> ^[[34m^[[1mGenerating entriescountdialog.moc^M
>
> I believe this started not long ago.
> What is wrong?

I guess this is a cmake/clang port?  Cmake, clang and several other
tools give colorised output.  This is achieved with escape sequences.

Chris