String format documentation incorrect

[kiranshila]

The documentation says:

%H	Minute number, zero-padded to 2 digits	39 for the 39th minutes of the hour	N/A

but that is inconsistent with the C89 value. %H should be hour as a decimal number, 24 hour clock (range [00-23]). Additionally, the minute format, %M seems to be missing, which is what the %H description seems to be for.

[ChristopherRabotin]

I looked into it, and the documentation is wrong but the functionality is correctly implemented. I'll add a specific test to show that, but there should be not need for a code change.

The following test is successful (and will be added to close this issue).

let e = Epoch::from_gregorian_utc_hms(2015, 2, 7, 11, 22, 33);
let fmtd = Formatter::new(e, Format::from_str("%H:%M").unwrap());
assert_eq!(format!("{fmtd}"), format!("11:22"));