From dfd35db4d178df264e14222be51667f255cd5c81 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg <flangy@gmail.com>
Date: Sun, 26 Aug 2012 17:08:09 -0700
Subject: [PATCH] Formula factory: add comment

---
 Library/Homebrew/formula.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 2b3305d202..cb6b44eb81 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -410,6 +410,8 @@ class Formula
     # have a "no such formula" message.
     raise
   rescue LoadError, NameError
+    # Catch NameError so that things that are invalid symbols still get
+    # a useful error message.
     raise FormulaUnavailableError.new(name)
   end