Merge pull request #4497 from reitermarkus/typo

Fix typo.

Library/Homebrew/test/PATH_spec.rb

@@ -69,7 +69,7 @@ describe PATH do
   end
 
   describe "#==" do
-    it "always returns false when comparing against something which does not respons to `#to_ary` or `#to_str`" do
+    it "always returns false when comparing against something which does not respond to `#to_ary` or `#to_str`" do
       expect(described_class.new).not_to eq Object.new
     end
   end