Proposal: config variable to increase the 50 char string limit in inspect

in active_record/attribute_methods.rb#format_for_inspect, the cutoff beyond which Strings are truncated in inspect, pretty_inspect, and pretty_print calls is hardcoded to 50. I’d love for that to be configurable, as that cuts off some important data i’m used to seeing at a glance.

If people feel a configuration variable isn’t warranted, then maybe a class attribute on ActiveRecord::Base that can be overriden, or even a method in ActiveRecord::AttributeMethods that can be easily overriden, like def string_inspect_limit = 50

Would be willing to make a PR myself if it would be accepted!