fix typo #39

	name: check_man_pages

	on: [push, pull_request]

	jobs:
	generate_man_pages:
	runs-on: ubuntu-24.04
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Install Dependencies
	run: \|
	sudo apt update
	sudo apt install help2man libglib2.0-dev

	- name: Configure CMake
	run: cmake -B ${{github.workspace}}/build ${{env.CMAKE_FLAGS}} -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}

	- name: Build
	run: cmake --build ${{github.workspace}}/build

	- name: Generate man pages
	run: ${{github.workspace}}/docs/generate_man_pages.sh

	- name: Check result
	run: \|
	set -xe
	EXIT_CODE=0
	# Match any line that begins with '+' and does not contain a month name. grep will return
	# a nonzero exit code if there's no matches, but that's what we want. In that case, the
	# bit after '\|\|' will execute and prevent the job from failing.
	git diff \| grep -Po '(?!.(January\|February\|March\|April\|May\|June\|July\|August\|September\|October\|November\|December))^\+[^\+].' \|\| EXIT_CODE=$?
	# If there was a match, then grep returns a zero exit code and we want to return a nonzero exit code.
	if [ "$EXIT_CODE" == 0 ]; then
	echo "Manual pages are out of sync. Please regenerate with 'docs/generate_man_pages.sh' or apply the following diff:"
	git diff \| cat
	exit 1
	else
	exit 0
	fi
	shell: bash

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