fixed typos

Author: fabpot

CHANGELOG.md

@@ -5,7 +5,7 @@ CHANGELOG
 -----
 
  * [BC BREAK] `SendersLocatorInterface` has an additional method:
-  `getSenderByAlias()`.
+   `getSenderByAlias()`.
  * A new `ListableReceiverInterface` was added, which a receiver
    can implement (when applicable) to enable listing and fetching
    individual messages by id (used in the new "Failed Messages" commands).

Transport/Sender/SendersLocator.php

@@ -100,6 +100,6 @@ public function getSenderByAlias(string $alias): SenderInterface
             return $this->sendersLocator->get($alias);
         }
 
-        throw new UnknownSenderException(sprintf('Unknown sender alias "%s"', $alias));
+        throw new UnknownSenderException(sprintf('Unknown sender alias "%s".', $alias));
     }
 }