fix copy/paste mistake

Author: oreoshake

spec/lib/secure_headers/headers/content_security_policy_spec.rb

@@ -195,7 +195,7 @@ def request_for user_agent, request_uri=nil, options={:ssl => false}
           expect(header.value).to include("script-src 'self' 'nonce-#{header.nonce}' 'unsafe-inline'")
         end
 
-        it "adds a nonce and unsafe-inline to the script-src value when using firefox" do
+        it "adds a nonce and unsafe-inline to the script-src value when using opera" do
           header = ContentSecurityPolicy.new(default_opts.merge(:script_src => "self nonce"), :request => request_for(OPERA))
           expect(header.value).to include("script-src 'self' 'nonce-#{header.nonce}' 'unsafe-inline'")
         end