From LWG telecon discussion ...

[format.string.std]:

The syntax of format specifications is as follows:

[format.range.formatter]:

range_­formatter interprets format-spec as a range-format-spec. The syntax of format specifications is as follows:

[time.format]:

The parse member functions of these formatters interpret the format specification as a chrono-format-spec according to the following syntax

LWG didn't really like the phrasing of "The syntax of format specifications is as follows:", but also didn't like the redundancy in "The parse member functions of these formatters interpret ..." (that is implied in the fact it's a format-spec).

Maybe we could use something that keeps the best bits of each style, e.g. "interprets format-spec as a foo-format-spec, according to the following syntax"