fix bug #4832 select language for email content when invite a friend

Changelog.md

@@ -26,6 +26,7 @@ Read more in [#4249](https://github.com/diaspora/diaspora/pull/4249) and [#4883]
 * SPV: Improve padding and interaction counts [#4426](https://github.com/diaspora/diaspora/pull/4426)
 
 ## Bug fixes
+* Fix email body language when invite a friend [#4832](https://github.com/diaspora/diaspora/issues/4832)
 * Improve time agos by updating the plugin [#4280](https://github.com/diaspora/diaspora/issues/4280)
 * Do not add a space after adding a mention [#4767](https://github.com/diaspora/diaspora/issues/4767)
 * Fix active user statistics by saving a last seen timestamp for users [#4734](https://github.com/diaspora/diaspora/issues/4734)

lib/email_inviter.rb

@@ -2,6 +2,7 @@ class EmailInviter
   attr_accessor :emails, :message, :inviter, :locale
 
   def initialize(emails, inviter, options={})
+    options = options.symbolize_keys
     self.message = options[:message]
     self.locale = options.fetch(:locale, 'en')
     self.inviter = inviter 

spec/lib/email_inviter_spec.rb

@@ -41,6 +41,11 @@
       inviter.locale.should == 'en'
     end
 
+    it 'should symbolize keys' do
+      inviter = EmailInviter.new(@emails, @user, 'locale' => 'es')
+      inviter.locale.should == 'es'
+    end
+
     it 'listens to the langauge option' do
       inviter = EmailInviter.new(@emails, @user, :locale => 'es')
       inviter.locale.should == 'es'