minor #11738 Fix indention (OskarStark)

This PR was merged into the 3.4 branch.

Discussion
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Fix indention

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Commits
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d14cca5 Fix indention

Author: javiereguiluz

components/validator/resources.rst

@@ -100,8 +100,8 @@ prefixed classes included in doc block comments (``/** ... */``). For example::
     class User
     {
         /**
-        * @Assert\NotBlank
-        */
+         * @Assert\NotBlank
+         */
         protected $name;
     }