ERR_HERE is used to mark messages of the form "... here" so that we
can emit sane output to the list file with filename and line number,
instead of a nonsensical "here" which could point almost anywhere.
This patch contains some changes from the one in the master branch to
make the code cleaner.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
e2f5edbb3a