[Minigrep project] - redirecting the errors to stderr

minigrep/src/main.rs

@@ -3,7 +3,7 @@ use std::env;
 fn main() {
     let args: Vec<String> = env::args().collect();
     let config = Config::build(&args).unwrap_or_else(|err| {
-        println!("problem parsing arguments: {err}");
+        eprintln!("problem parsing arguments: {err}");
         std::process::exit(1);
     });
 
@@ -11,7 +11,7 @@ fn main() {
     println!("In file {}", config.file_path);
 
     if let Err(e) = minigrep::run(config) {
-        println!("Application error: {e}");
+        eprintln!("Application error: {e}");
         std::process::exit(1);
     }
 }