PR29, Coreutils POSIX2_VERSION as 200112L

PR29, Coreutils POSIX2_VERSION as 200112L

As of today we have just the following oddities left
./gnulib/update-gnulib.sh:ver=`autoconf --version 2>&1 | head -1 | sed 's/.*) //'`
./gnulib/update-gnulib.sh:ver=`automake --version 2>&1 | head -1 | sed 's/.*) //'`
./gnulib/update-gnulib.sh:ver=`aclocal --version 2>&1 | grep -v "called too early to check prototype" | head -1 | sed 's/.*) //'`
./src-release.sh:	head -1 $tool/version.in
./contrib/dg-extract-results.sh:tail -2 $FIRST_SUM | $GREP '^#' > /dev/null || tail -2 $FIRST_SUM

gnulib and contrib (from gcc) are outside of binutils control, so with
this patch I'm going to declare this 15 year old bug fixed.

	PR 29
	* src-release.sh (getver): Replace "head -1" with "head -n 1".