Fixed the sender email address

Fixed a grammatic error

includes/general.php

@@ -744,7 +744,7 @@
 
 			$body .= _("Best regards")."\n"._("CAcert.org Support!");
 
-			sendmail("philipp@cacert.org", $subject, $body, "philipp@cacert.org", "", "", "CAcert Support");
+			sendmail("philipp@cacert.org", $subject, $body, "returns@cacert.org", "", "", "CAcert Support");
 
 			if($show) showfooter();
 			if($show) exit;
@@ -882,7 +882,7 @@
 		} elseif ($Status == 5) {
 			$Result = _("You have at least 100 Assurance Points, if you want to become an assurer try the").' <a href="https://cats.cacert.org/"><?=_("Assurer Challenge")?></a>!';
 		} elseif ($Status == 7) {
-			$Result = _("To become an Assurer have to collect 100 Assurance Points and pass the").' <a href="https://cats.cacert.org/"><?=_("Assurer Challenge")?></a>!';
+			$Result = _("To become an Assurer you have to collect 100 Assurance Points and pass the").' <a href="https://cats.cacert.org/"><?=_("Assurer Challenge")?></a>!';
 		} elseif ($Status & 8 > 0) {
 			$Result = _("Sorry, you are not allowed to be an Assurer. Please contact").' <a href="mailto:cacert-support@lists.cacert.org">cacert-support@lists.cacert.org</a>'._(" if you feel that this is not corect.");
 		} else {