[Docs] Clarify the behvior of first, last, and nth on empty generators #1126

	name: valgrind
	on:
	push:
	branches:
	- master
	pull_request:

	jobs:
	linux:
	runs-on: ubuntu-22.04
	steps:
	- name: Clone repository
	uses: actions/checkout@v4
	with:
	submodules: true
	- name: Install packages
	run: \|
	sudo apt-get update
	sudo apt-get install -y automake autoconf libtool valgrind
	- name: Build
	run: \|
	autoreconf -i
	./configure \
	--disable-docs \
	--with-oniguruma=builtin
	make -j"$(nproc)"
	file ./jq
	- name: Test
	run: \|
	make check VERBOSE=yes
	git diff --exit-code
	- name: Upload Test Logs
	if: ${{ failure() }}
	uses: actions/upload-artifact@v4
	with:
	name: test-logs-valgrind-linux
	retention-days: 7
	path: \|
	test-suite.log
	tests/*.log

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