Since we are using human_attribute_name, @@label_str_method should has :to_s as default. This is needed because human_attribute_name already returns the string in a user readable and specified format. For example, when we set human_attribute_name to "E-mail", having :titleize as default would returns "E Mail" and "Confirm your password" as "Confirm Your Password".
Since we are using human_attribute_name, @@label_str_method should has :to_s as default. This is needed because human_attribute_name already returns the string in a user readable and specified format. For example, when we set human_attribute_name to "E-mail", having :titleize as default would returns "E Mail" and "Confirm your password" as "Confirm Your Password".

Signed-off-by: Justin French <0ce7911e6479995d6c346d6f03eb723b5135309e@indent.com.au>
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