bin/mdcat in mdcat-0.2.0 vs bin/mdcat in mdcat-0.3.0

@@ -4,24 +4,24 @@
 $LOAD_PATH.unshift(File.expand_path("../lib", __dir__))
 
 require "mdcat"
 require "tty-markdown"
 
-BANNER = %{
+BANNER = %q(
           _         _
  _ __  __| |__ __ _| |_
 | '  \/ _` / _/ _` |  _|
 |_|_|_\__,_\__\__,_|\__|
-version (#{Mdcat::VERSION})
-}
+)
 
 def help
   puts %(
 #{BANNER}
+version (#{Mdcat::VERSION})
 
 USAGE
-mdcat <file>
+  mdcat <file>
 
 COMMANDS
   mdcat -h, help               show this help message
 
 EXAMPLES
@@ -30,21 +30,25 @@
   )
 end
 
 # commands
 if ARGV[0] == "-h" || ARGV[0] == "help"
-  help and exit(0)
+  help
+  exit(0)
 end
 
 # validations
 file_path = ARGV[0]
-help and exit(1) if file_path.nil?
+if file_path.nil?
+  help
+  exit(1)
+end
 
 file = File.expand_path(file_path)
 unless File.exist?(file)
   help
   puts "File not found: #{file}"
-  exit 1
+  exit(1)
 end
 
 # proessing file and output
 puts TTY::Markdown.parse_file(file)