Merge pull request #1530 from pborreli/typos

Fixed typos

src/Composer/Script/PackageEvent.php

@@ -32,7 +32,7 @@ class PackageEvent extends Event
      * Constructor.
      *
      * @param string             $name      The event name
-     * @param Composer           $composer  The composer objet
+     * @param Composer           $composer  The composer object
      * @param IOInterface        $io        The IOInterface object
      * @param boolean            $devMode   Whether or not we are in dev mode
      * @param OperationInterface $operation The operation object

src/Composer/Util/Filesystem.php

@@ -119,7 +119,7 @@ class Filesystem
     /**
      * Copy then delete is a non-atomic version of {@link rename}.
      *
-     * Some systems can't rename and also dont have proc_open,
+     * Some systems can't rename and also don't have proc_open,
      * which requires this solution.
      *
      * @param string $source