Function pluralize 

pub fn pluralize<'a>(
    count: usize,
    singular: &'a str,
    plural: &'a str,
) -> &'a str

Pluralize a word based on a count.

Example

use click::utils::pluralize;

assert_eq!(pluralize(1, "file", "files"), "file");
assert_eq!(pluralize(2, "file", "files"), "files");
assert_eq!(pluralize(0, "file", "files"), "files");