Altering error messages to only show the attribute name in the error message, if the error message starts with a lower-case character

less_full_error_messages.rb

# Put this file with your initializers 

# Altering error messages to only show the attribute name in the error message, 
# if the error message starts with a lower-case character

if RAILS_GEM_VERSION =~ /^2\.3\.5/
  class ActiveRecord::Error
    def full_message
      if attribute.to_s == 'base' || message =~ /^[[:upper:]]/
        message
      else
        generate_full_message(default_options)
      end
    end
  end
end