Fix a mistake in a spec name (#2012)

Followup: #2006

I renamed the wrong spec.

Co-authored-by: Jean Boussier <jean.boussier@gmail.com>

test/spec_method_override.rb

@@ -106,14 +106,14 @@ def app
     env[Rack::RACK_ERRORS].read.must_include 'Bad request content body'
   end
 
-  it "not modify REQUEST_METHOD for POST requests when the params are unparseable" do
+  it "not modify REQUEST_METHOD for POST requests when the params are unparseable because too deep" do
     env = Rack::MockRequest.env_for("/", method: "POST", input: ("[a]" * 36) + "=1")
     app.call env
 
     env["REQUEST_METHOD"].must_equal "POST"
   end
 
-  it "not modify REQUEST_METHOD for POST requests when the params are unparseable because too deep" do
+  it "not modify REQUEST_METHOD for POST requests when the params are unparseable" do
     env = Rack::MockRequest.env_for("/", method: "POST", input: "(%bad-params%)")
     app.call env