[PATCH] Replace @[r|l]bracechar with @{ and @} in the manual

[Florian Weimer]

* Tulio Magno Quites Machado Filho:

> The support for @lbracechar and @rbracechar was added in GNU Texinfo
> 5.0, but glibc still supports GNU Texinfo 4.7.
>
> 2018-12-19  Tulio Magno Quites Machado Filho  <tuliom@linux.ibm.com>
>
> 	* manual/maint.texi(64-bit time symbol handling): Replace
> 	@[r|l]bracechar with @{ and @}.

Looks fine to me.

Thanks,
Florian