csv-fix: update sha1 and add test

Closes Homebrew/homebrew#26598.

Signed-off-by: Brett Koonce <koonce@gmail.com>

Formula/csv-fix.rb

@@ -3,10 +3,18 @@ require 'formula'
 class CsvFix < Formula
   homepage 'http://code.google.com/p/csvfix/'
   url 'https://bitbucket.org/neilb/csvfix/get/version-1.3.zip'
-  sha1 '9d8c4c38abf4be722eb6e3fc967fd2eeb3bd2299'
+  sha1 '2bca2d461434e7bd799e6c886d8eda769e7d3937'
 
   def install
     system "make lin"
     bin.install 'csvfix/bin/csvfix'
   end
+
+  test do
+    IO.popen("#{bin}/csvfix trim", "w+") do |pipe|
+      pipe.write "foo , bar \n"
+      pipe.close_write
+      assert_equal %{"foo","bar"\n}, pipe.read
+    end
+  end
 end