Specify custom error messages
When customizing field names isn't
enough customizing of error messages you can override the full error message
through HTML as well. By setting the title attribute on the field
element (input, select or textarea) in
question, this will be used when the field fails.
Note: when overriding error messages this way, this single message will apply to all validators for this field. If you need to control per field per validator messages, you need to get your hands dirty with either the core API or the DSL extension.
Example
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