docs: fix broken HTML

[neteler]

This small PR fixes

• HTML id attributes
• a href typo

[neteler]

TravisCI complains about the following but I'll merge anyway:

make[4]: Entering directory '/home/travis/build/OSGeo/grass/python/grass'
make[5]: Entering directory '/home/travis/build/OSGeo/grass/python/grass/app'
mkdir -p /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app
/usr/bin/install -c -m 644 data.py /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/data.py
/usr/bin/install -c -m 644 runtime.py /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/runtime.py
/usr/bin/install -c -m 644 __init__.py /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/__init__.py
python3 -m py_compile /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/data.py
python3 -m py_compile /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/runtime.py
  File "/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/runtime.py", line 142
    if manpath_executable := shutil.which("manpath"):
                           ^
SyntaxError: invalid syntax
make[5]: *** [../../../include/Make/Python.make:5: /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python/grass/app/runtime.pyc] Error 1
make[5]: *** Waiting for unfinished jobs....
make[5]: Leaving directory '/home/travis/build/OSGeo/grass/python/grass/app'

and

if [ "/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/scripts/g.extension" != "" ] ; then GISRC=/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/demolocation/.grassrc85 GISBASE=/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu PATH="/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/bin:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/bin:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/scripts:$PATH" PYTHONPATH="/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/etc/python:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/gui/wxpython:$PYTHONPATH" LD_LIBRARY_PATH="/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/bin:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/bin:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/scripts:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/lib:/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/lib:" LC_ALL=C LANG=C LANGUAGE=C /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/scripts/g.extension --html-description < /dev/null | grep -v '</body>\|</html>\|</div> <!-- end container -->' > g.extension.tmp.html ; fi
  File "/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/scripts/g.extension", line 474
    codecs.open(python_file, "r", encoding="utf8") as in_file,
                                                    ^
SyntaxError: invalid syntax
make[3]: *** [../../include/Make/Html.make:18: g.extension.tmp.html] Error 1
rm g.extension.tmp.html
make[3]: Leaving directory '/home/travis/build/OSGeo/grass/scripts/g.extension'

and

GISBASE="/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu" ARCH="x86_64-pc-linux-gnu" ARCH_DISTDIR="/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu" VERSION_NUMBER=8.5.0dev VERSION_DATE=2024 python3 ./parser_standard_options.py -t "/home/travis/build/OSGeo/grass/lib/gis/parser_standard_options.c" -f "grass" -o "/home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/docs/html/parser_standard_options.html" -p 'id="opts_table" class="scroolTable"'
Traceback (most recent call last):
  File "./parser_standard_options.py", line 230, in <module>
    options = OptTable(parse_options(cfile.readlines(), startswith=args.startswith))
  File "./parser_standard_options.py", line 99, in parse_options
    res = parse_glines(glines)
  File "./parser_standard_options.py", line 60, in parse_glines
    key, default = (w.strip() for w in split_opt_line(line[5:]))
  File "./parser_standard_options.py", line 43, in split_opt_line
    default = default.removeprefix("_(")
AttributeError: 'str' object has no attribute 'removeprefix'
make[3]: *** [Makefile:178: /home/travis/build/OSGeo/grass/dist.x86_64-pc-linux-gnu/docs/html/parser_standard_options.html] Error 1
make[3]: *** Waiting for unfinished jobs....

[echoix]

The removeprefix tells me something. Are we sure we are using a supported Python version? It should be at least Python 3.9.

[echoix]

https://docs.python.org/3/library/stdtypes.html#str.removeprefix

Was added in Python 3.9, and it is the minimum required version. (3.13 is out)

[echoix]

There seems to be an Travis ci Ubuntu 2204 image update 10 hours ago: https://changelog.travis-ci.com
No notes of what could have changed.

Now (failing): https://hub.docker.com/layers/travisci/ci-ubuntu-2204/packer-1732018610-114d849a/images/sha256-8d9ed339ded2880c913ad5d368c5f78efa7a9a9bc185809769a77e43d076b48a?context=explore

Before (about 15 days ago): https://hub.docker.com/layers/travisci/ci-ubuntu-2204/packer-1730720943-739fb912/images/sha256-451245fb8b63cba9d0201c8f7ec1d299aad5cfda366acb2ac73aad92bd2381c8?context=explore

[neteler]

The removeprefix tells me something. Are we sure we are using a supported Python version? It should be at least Python 3.9.

Yes, see this new error:

OSGeo/grass-addons#1241 (comment) (grass.osgeo.org is a Debian box)

[echoix]

But the Travis stack trace failing on str.removeprefix shouldn't be happening