merged branch dantleech/filesystem-sprintf-typo-1 (PR #2831)

Commits
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84bb6bc [Filesystem] Sprintf typo in exception

Discussion
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[Filesystem] Sprintf typo in exception

Bug fix: [yes]
Feature addition: [no]
Backwards compatibility break: [no]

src/Symfony/Component/HttpKernel/Util/Filesystem.php

@@ -133,7 +133,7 @@ class Filesystem
     {
         // we check that target does not exist
         if (is_readable($target)) {
-            throw new \RuntimeException(sprintf('Cannot rename because the target "%" already exist.', $target));
+            throw new \RuntimeException(sprintf('Cannot rename because the target "%s" already exist.', $target));
         }
 
         rename($origin, $target);