return 0 when -h/--help is used

Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.18"
@@ -589,7 +591,7 @@ dependencies = [
 
 [[package]]
 name = "feroxbuster"
-version = "2.3.0"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "assert_cmd",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "feroxbuster"
-version = "2.3.0"
+version = "2.3.1"
 authors = ["Ben 'epi' Risher <epibar052@gmail.com>"]
 license = "MIT"
 edition = "2018"

src/parser.rs

@@ -432,7 +432,7 @@ EXAMPLES:
         if arg == "--help" || arg == "-h" {
             app.print_long_help().unwrap();
             println!(); // just a newline to mirror original --help output
-            process::exit(1);
+            process::exit(0);
         }
     }
 

tests/test_parser.rs

@@ -19,7 +19,7 @@ fn parser_incorrect_param_with_tack_tack_help() {
         .arg("-fc")
         .arg("--help")
         .assert()
-        .failure()
+        .success()
         .stdout(predicate::str::contains("Ludicrous speed... go!"));
 }
 
@@ -41,6 +41,6 @@ fn parser_incorrect_param_with_tack_h() {
         .arg("-fc")
         .arg("-h")
         .assert()
-        .failure()
+        .success()
         .stdout(predicate::str::contains("Ludicrous speed... go!"));
 }