#6209 - Update test case so it actually tests the thing it should be testing
Fix parameter format causing duplicate mails

Recently I've experienced mails being duplicated and send to the sender when using the sendmail transport. After consulting my hosting company they told me there shouldn't been a space between "-f" and the envelope sender address. Removing the space character fixed the problem. No more duplicated mails being send to the sender.

Furthermore I tested Swiftmailer and its sendmail transport layer. Absolutely no problems with it.

Looking at the php docs there isn't a space character either, see http://www.php.net/manual/en/function.mail.php#example-3471. Furthermore I found http://stackoverflow.com/questions/4205228/basic-mail-function-php-additional-f-parameter-question and consulted the sendmail docs too: http://www.sendmail.org/~ca/email/man/sendmail.html.

However, there are other examples around with a space character: http://stackoverflow.com/questions/179014/how-to-change-envelope-from-address-using-php-mail. Are they wrong?

Since I'm not familiar with sendmail but actually trusting my hosting company I'm proposing to remove the space character.
Update SendmailTest.php
Fixes #6467
[Http] Fix curl protocol version
fixed conflicted phpdoc return values (see #6511
Merge branch 'hotfix/#6512-fix-#6511-sharedeventmanager-return-values-phpdoc'

Close #6512
Close #6511
Fixes #6506 - as of zendframework/zf2@eaa78740c352cdaf0f44179204674b56b7f19ad6, `zendframework/zend-form` is required in the MVC
Merge branch 'hotfix/#6506-missing-zend-form-dependency-in-zend-mvc'

Close #6506
Fix: Undefined field
Merge branch 'fix/viewname' of github.com:samsonasik/zf2 into samsonasik-fix/viewname
Merge branch 'samsonasik-fix/viewname'

Close #6470 #6467
Merge branch 'hotfix/#6480-undefined-field-in-zend-http-header-origin'

Close #6480
PHPCS Fixes for Zend\Authentication
Merge branch 'hotfix/6209' of github.com:adamlundrigan/zf2 into adamlundrigan-hotfix/6209
Merge branch 'adamlundrigan-hotfix/6209'

Close #6209 #6469
Merge branch 'cs/#6490-zend-authentication-cs-fixes'

Close #6490
Merge branch 'http-curl-protocol-version' of github.com:egeloen/zf2 into egeloen-http-curl-protocol-version
Merge branch 'egeloen-http-curl-protocol-version'

Close #6485
Redis Server URI correct parsing

Including password support.