def synx_project(modified_file_path)
      path = project_path modified_file_path
      name = project_name path
      output = `#{synx} -w warning "#{path}" 2>&1`.lines
      output
        .map(&:strip)
        .select { |o| o.start_with? 'warning: ' }
        .map { |o| [name, strip_prefix(o)] }
    end
def synx_project(modified_file_path)
      path = project_path modified_file_path
      name = project_name path
      output = `#{synx} -w warning "#{path}" 2>&1`.lines
      output
        .map(&:strip)
        .select { |o| o.start_with? 'warning: ' }
        .map { |o| [name, strip_prefix(o)] }
    end
Triggers Synx in a dry-run mode on a project file.
 Parses output and returns a list of issues.

 @param  [String] modified_file_path
         Path of file contained in .xcodeproj to Synx

 @return [(String, String)]