From b1e5f5ee8119782bbd1761181e86546d56d3b53c Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Fri, 19 Jul 2013 22:31:03 -0500
Subject: [PATCH] Fix String#start_with? implementation

It is supposed to accept a variable number of prefixes, and also to
check if they are convertible to strings. This matches behavior
documented in RubySpec.
---
 Library/Homebrew/extend/string.rb | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/Library/Homebrew/extend/string.rb b/Library/Homebrew/extend/string.rb
index 1b3c1403ef..b2a247297b 100644
--- a/Library/Homebrew/extend/string.rb
+++ b/Library/Homebrew/extend/string.rb
@@ -15,12 +15,14 @@ class String
   #               EOS
   alias_method :undent_________________________________________________________72, :undent
 
-  unless String.method_defined?(:start_with?)
-    def start_with? prefix
-      prefix = prefix.to_s
-      self[0, prefix.length] == prefix
+  def start_with?(*prefixes)
+    prefixes.any? do |prefix|
+      if prefix.respond_to?(:to_str)
+        prefix = prefix.to_str
+        self[0, prefix.length] == prefix
+      end
     end
-  end
+  end unless method_defined?(:start_with?)
 
   # String.chomp, but if result is empty: returns nil instead.
   # Allows `chuzzle || foo` short-circuits.