#493314 by yched and catch: Add multiple hook for formatters.

modules/comment/comment.module

modules/field/field.api.php

modules/field/field.attach.inc

modules/field/field.default.inc

modules/field/field.test

modules/node/node.module

modules/node/node.pages.inc

modules/simpletest/tests/field_test.module

modules/taxonomy/taxonomy.module

modules/taxonomy/taxonomy.pages.inc

modules/taxonomy/taxonomy.test

modules/user/user.module