bin/xi in xi-lang-0.2.3 vs bin/xi in xi-lang-0.2.4

@@ -2,10 +2,10 @@
 require "xi"
 require "xi/repl"
 
 include Xi
 
-if ARGV.index('--irb') >= 0
+if ARGV.index('--irb')
   ARGV.delete('--irb')
   REPL.start(irb: true)
 else
   REPL.start
 end