--opt=[x]NUM syntax breaks rendering of the first bracket
This shows fine:
-f, --follow[={name|descriptor}]
This shows as [+]:
-n, --lines=[+]NUM
Can be seen on https://man.archlinux.org/man/tail.1.en#c
Due to an influx of spam, we have had to temporarily disable account registrations. Please write an email to accountsupport@archlinux.org, with your desired username, if you want to get access. Sorry for the inconvenience.
This shows fine:
-f, --follow[={name|descriptor}]
This shows as [+]:
-n, --lines=[+]NUM
Can be seen on https://man.archlinux.org/man/tail.1.en#c