IndexError: string not matched

[tleish]

Discovered an issue where one yaml language file was accidentally formatted in such a way that it invalidated another language yaml file.

file: common.en.yml

en:
  common:
    shopping:
      cart: 'Cart'
      ...

file: new.en.yml

en:
  common:
  shopping:
    checkout: 'Checkout'
    ...

Note that the 2nd yaml format is valid, but shopping key was not indented enough to make it valid. This overwrote en.common values in the application to be invalid.

When using i18n_tools to check translations, an error was returned:

$ rake translations:missing
rake aborted!
IndexError: string not matched
/Users/tleishman/.rvm/gems/ruby-2.1.2/gems/i18n_tools-0.1.6/lib/i18n_tools/missing_scanner.rb:45:in `[]='
/Users/tleishman/.rvm/gems/ruby-2.1.2/gems/i18n_tools-0.1.6/lib/i18n_tools/missing_scanner.rb:45:in `block in results'
/Users/tleishman/.rvm/gems/ruby-2.1.2/gems/i18n_tools-0.1.6/lib/i18n_tools/missing_scanner.rb:16:in `each'
/Users/tleishman/.rvm/gems/ruby-2.1.2/gems/i18n_tools-0.1.6/lib/i18n_tools/missing_scanner.rb:16:in `results'
/Users/tleishman/.rvm/gems/ruby-2.1.2/gems/i18n_tools-0.1.6/tasks/i18n_tools.rake:26:in `block (2 levels) in <top (required)>'