Use friendlier terminology in rubysocket.h

[JuanitoFatas]

This Pull Request updates the socket header file.

Allowlist is easier to understand and better terminology.

Original motivation, community efforts examples:

• [ci skip] change all instances of blacklist and whitelist to denylist… rails/rails#33681
• deserialize_jsonapi not found on controller graphiti-api/graphiti#10
• Finish converting whitelist and blacklist references rails/rails#33718
• Use friendlier terminology in YAML.safe_load psych#378
• Use friendlier terminology in _leaf_helpers.erb #2009
• Use permitted in line_length.rb rubocop/rubocop#6464
• Update friendlier terminology in Gem::SafeYAML rubygems/rubygems#2463
• Update terminologies dtao/safe_yaml#93
• Update friendlier terminology in Gem::SafeYAML rubygems/rubygems#2463
• Introduce Request::ALLOWED_SCHEMES and deprecate existing constant rack/rack#1314
• Use permitted in line_length.rb rubocop/rubocop#6464
• Update terminology in http_status.rb rubocop/rubocop#6466
• Update terminology in rails/validation.rb rubocop/rubocop#6467
• Update terminology in BUILD_DETAIL.md rspec/rspec-core#2576
• Update terminology in BUILD_DETAIL.md rspec/rspec-expectations#1083
• Update terminology in BUILD_DETAIL.md rspec/rspec-mocks#1246
• Update terminology in BUILD_DETAIL.md rspec/rspec-support#356
• Use safelist(s), allowlist(s) where applicable flavorjones/loofah#158
• Use clearer terminologies pry/pry#1874
• Update terminology in test description from completion spec pry/pry#1875

[ioquatix]

I’m not sure “allowlist” is the right equivalent, because this isn’t about “allowance” but “this has been shown to work”. So, it might just require an entirely new phrasing.

[ioquatix]

In an effort to find better terminology and to understand the underlying problems, I found https://english.stackexchange.com/questions/51088/alternative-term-to-blacklist-and-whitelist which suggests using "safelist", which I think might be a better fit?

[JuanitoFatas]

In an effort to find better terminology and to understand the underlying problems, I found https://english.stackexchange.com/questions/51088/alternative-term-to-blacklist-and-whitelist which suggests using "safelist", which I think might be a better fit?

Makes sense, applied suggestion, thanks for the review! 👍