bug#10876: Please mention format-time-string in "Time of Day"

[Chong Yidong]

Lennart Borgman <lennart.borgman@gmail.com> writes:

> format-time-string is similar to current-time-string, but more
> flexible. So they should probably be mentioned in the same place.
>
> However maybe a better suggestion is to move current-time-string to
> "39.7 Parsing and Formatting Times" and add a link to 39.7 from 39.5?
> (Actually I think the whole part about "date and time" should be a
> little bit reorganized. Having a heading "Date and Time" (instead of
> "Time of Day") and subheadings for "Time Conversion" and "Time
> Parsing" looks better to me.)

I have tweaked the text to make the connection clearer.