Re: Fix a couple of ShellCheck warnings

[Jim Meyering]

On Sat, Jul 23, 2022 at 1:57 PM Bruno Haible <bruno@clisp.org> wrote:
> The other issues reported by ShellCheck are pretty harmless. Still, fixing
> some of them can improve security or code clarity.
>
> 2022-07-23  Bruno Haible  <bruno@clisp.org>
>
>         Fix a couple of ShellCheck warnings.
>         * MODULES.html.sh (sed_escape_slash): Remove unused variable.
>         * build-aux/bootstrap: Avoid computed printf format strings.
>         * build-aux/do-release-commit-and-tag: Likewise.
>         * build-aux/gendocs.sh: Likewise.
>         * build-aux/declared.sh: Fix "unrecognized option" message.
>         * gnulib-tool (supplied_opts): Remove unused variable.
>         (--single-con): Remove redundant option recognition.
>         * tests/test-parse-duration.sh (nl): Remove unused variable.
>         * tests/test-update-copyright.sh: Use double-quotes instead of
>         single-quotes.

Thanks for all the fixes and cleanup!