def synx_issues
      (git.modified_files + git.added_files)
        .select { |f| f.include? '.xcodeproj' }
        .reduce([]) { |i, f| i + synx_project(f) }
    end
def synx_issues
      (git.modified_files + git.added_files)
        .select { |f| f.include? '.xcodeproj' }
        .reduce([]) { |i, f| i + synx_project(f) }
    end
Triggers Synx on all projects that were modified or added
 to the project. Returns accumulated list of issues
 for those projects.

 @return [Array<(String, String)>]