演算子クラスの必要性についての記述に対する訳を改善 #3279

	name: make test

	on: [push, pull_request]
	jobs:
	build:

	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: set-grep-color
	run: git config --global color.grep.match "black red"
	- name: apt update
	run: sudo apt update
	- name: Install Dependencies
	run: sudo apt install -y docbook-xsl libbsd-dev libedit-dev libpam0g-dev libperl-dev libxml2-utils xsltproc
	- name: configure
	run: ./configure
	- name: make check
	run: cd doc/src/sgml && make check
	- name: make
	run: make html "XSLTPROCFLAGS= --stringparam suppress.footer.navigation '1'"

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