validate authors target

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

scripts/docs/generate-authors.sh

@@ -1,10 +1,8 @@
 #!/usr/bin/env bash
 set -e
 
-cd "$(dirname "$(readlink -f "${BASH_SOURCE[*]}")")/../.."
-
 # see also ".mailmap" for how email addresses and names are deduplicated
-
+OUT="${1:-.}"
 {
 	cat <<-'EOH'
 	# This file lists all individuals having contributed content to the repository.
@@ -12,4 +10,5 @@ cd "$(dirname "$(readlink -f "${BASH_SOURCE[*]}")")/../.."
 	EOH
 	echo
 	git log --format='%aN <%aE>' | LC_ALL=C.UTF-8 sort -uf
-} > AUTHORS
+} > "$OUT/AUTHORS"
+cat "$OUT/AUTHORS"