instance method display_hint_if_system_editor_not_specified

# File railties/lib/rails/command/helpers/editor.rb, line 15
          def display_hint_if_system_editor_not_specified
            if editor.to_s.empty?
              say "No $VISUAL or $EDITOR to open file in. Assign one like this:"
              say ""
              say %(VISUAL="mate --wait" #{executable(current_subcommand)})
              say ""
              say "For editors that fork and exit immediately, it's important to pass a wait flag;"
              say "otherwise, the file will be saved immediately with no chance to edit."

              true
            end
          end