From 46f2c4b0cf615d89963c656e5a8f9681a8f677a0 Mon Sep 17 00:00:00 2001
From: Luka Vandervelden <lukc@upyum.com>
Date: Tue, 13 Aug 2019 13:23:57 +0200
Subject: [PATCH] --help added as a proper option.

---
 src/main.cr | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main.cr b/src/main.cr
index a5f4912..4209434 100644
--- a/src/main.cr
+++ b/src/main.cr
@@ -37,6 +37,11 @@ OptionParser.parse! do |parser|
 		do_not_clean = true
 	}
 
+	parser.on("-h", "--help", "Prints this help message.") {
+		puts parser
+		exit 0
+	}
+
 	parser.invalid_option do |flag|
 		STDERR.puts "ERROR: #{flag} is not a valid option."
 		STDERR.puts parser