Minor inconsistency in conf.py: latex_documents uses author string literal instead of author variable

Description

The conf.py generated by sphinx-quickstart uses the variable author in man_pages and texinfo_documents but also uses the literal string value for author in latex_documents

To Reproduce

$ sphinx-quickstart
...
> Project 
> Author name(s): John Q. Pseudonymous
...
$ cat source/conf.py
...
author = 'John Q. Pseudonymous'
...
latex_documents = [
    (master_doc, 'deleteme.tex', 'delete me Documentation',
     'John Q. Pseudonymous', 'manual'),
]
...
man_pages = [
    (master_doc, 'deleteme', 'delete me Documentation',
     [author], 1)
]
...
texinfo_documents = [
    (master_doc, 'deleteme', 'delete me Documentation',
     author, 'deleteme', 'One line description of project.',
     'Miscellaneous'),
]
...

Expected behavior

I would expect latex_documents to use the author variable rather than the string literal

$ cat source/conf.py
...
author = 'John Q. Pseudonymous'
...
latex_documents = [
    (master_doc, 'deleteme.tex', 'delete me Documentation',
     author, 'manual'),
]
...
man_pages = [
    (master_doc, 'deleteme', 'delete me Documentation',
     [author], 1)
]
...
texinfo_documents = [
    (master_doc, 'deleteme', 'delete me Documentation',
     author, 'deleteme', 'One line description of project.',
     'Miscellaneous'),
]
...

Environment info

• OS: Ubuntu Studio 20.04
• Python version: 3.8.2
• Sphinx version: 1.8.5

Start with the conf.py template emitted by sphinx-quickstart and compare latex_documents with the nearby man_pages and texinfo_documents definitions. Rerun sphinx-quickstart with a sample author and inspect source/conf.py; done means latex_documents uses author consistently with the other generated entries.