strptime() not handling optionality of leading zeroes

[mikedilger]

For many format specifiers, leading zeroes are supposed to be optional: http://pubs.opengroup.org/onlinepubs/7908799/xsh/strptime.html

I have only tested %m.

[package]
name = "test"
version = "0.0.0"
authors = [ "mike@mikedilger.com" ]

[[bin]]
name = "test"
path = "main.rs"

[dependencies]
time = "*"

extern crate time;

use time::strptime;

fn main() {
    // %m is the month number [1,12]; leading zeros are permitted but not required.
    let format = "%d/%m/%Y".into_string();
    let dates = [ "24/05/2016", "24/5/2016" ];

    for date in dates.iter() {
        match strptime(*date, format.as_slice() ) {
            Ok(d) => println!("{} is valid {}, result shows as {}", date, format, d),
            Err(e) => println!("{} is invalid {} -- {}", date, format, e),
        }
    }
}

24/05/2016 is valid %d/%m/%Y, result shows as Tm { tm_sec: 0, tm_min: 0, tm_hour: 0, tm_mday: 24, tm_mon: 4, tm_year: 116, tm_wday: 0, tm_yday: 0, tm_isdst: 0, tm_utcoff: 0, tm_nsec: 0 }
24/5/2016 is invalid %d/%m/%Y -- Invalid month.