Example script: Bash caller builtin lists wrong lineno/function in ERR trap triggered by return

return_caller_bug.bash

#!/bin/bash -E

function commanderr
{
	false
}

function returnerr
{
	return 1
}

function calltrace ()
{
	local l=0
	echo -n "${l}: "
	while caller $((l++)); do echo -n "${l}: "; done
	echo -n -e "\r"
}
trap 'calltrace' ERR

commanderr
returnerr