p_rust 0.1.0

My rust practice
Documentation 
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use std::{env, process};
use p_rust::minigrep_lib;
use p_rust::minigrep_lib::Config;

/* usage
  cargo run --bin minigrep to poem.txt
  IGNORE_CASE=1 cargo run --bin minigrep to poem.txt
 */

fn main() {
    let config = Config::new(env::args()).unwrap_or_else(|err| {
        eprintln!("Problem parsing arguments: {}", err);
        process::exit(1);
    });

    if let Err(e) = minigrep_lib::run(config) {
        eprintln!("Application error: {}", e);
        process::exit(1);
    }
}