cc/gcc: cleanup comments from rude wordings

That comes from way back when nothing would work as expected, and I would
easily get heated as soon as anything would break. Sigh, those were the
old days.

Apologies.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

 #!/bin/sh

 set -e

 printf "Running autoconf...\n"

 autoconf -Wall --force

 printf "Done. You may now run:\n    ./configure\n"