Redpen linter previously had hardcoded command-line options and duplicated
linter definitions across all supported file types (asciidoc, markdown,
review, rst, tex, text). This refactoring centralizes the linter definition
and adds support for user-configurable options via g:ale_redpen_options.
Key changes:
- Created ale#handlers#redpen#DefineLinter() to eliminate code duplication
- Added ale#handlers#redpen#GetCommand() to support configurable options
- All file types now use shared configuration and command building
- Added comprehensive test coverage for option handling
- Updated documentation for all affected file types
This allows users to customize redpen behavior with additional command-line
options while maintaining backward compatibility and reducing maintenance
overhead.
