sde-commit: prerender Signed-of-by when using -s

Signed-off-by: Alejandro Mery <amery@geeks.cl>

bin/sde-commit

@@ -62,7 +62,8 @@ while [ $# -gt 0 ]; do
 		-s)		signed=true; shift ;;
 
 		--)	shift; break ;;
-		*)	echo_abort 1 "Unknown argument '$1', aborting."
+		-*)	echo_abort 1 "Unknown argument '$1', aborting." ;;
+		*)	break ;;
 	esac
 	shift
 done
@@ -174,6 +175,13 @@ if [ -s $tmpfile.diff -o -s $tmpfile.status ]; then
 	echo_msg "Status:"
 	cat $tmpfile.status
 
+	if [ -s "$logfile" -a -n "${signed:-}" -a -e '.git' ]; then
+		cat <<-EOT >> $logfile
+
+		Signed-off-by: $(git config user.name) <$(git config user.email)>
+		EOT
+	fi
+
 	quit=0
 	until [ $quit -ne 0 ]; do