+ "\t--output=(summary|threads|messages|files|tags)\n"
+ "\n"
+ "\t\tsummary (default)\n"
+ "\n"
+ "\t\tOutput a summary of each thread with any message matching the\n"
+ "\t\tsearch terms. The summary includes the thread ID, date, the\n"
+ "\t\tnumber of messages in the thread (both the number matched and\n"
+ "\t\tthe total number), the authors of the thread and the subject.\n"
+ "\n"
+ "\t\tthreads\n"
+ "\n"
+ "\t\tOutput the thread IDs of all threads with any message matching\n"
+ "\t\tthe search terms, either one per line (--format=text) or as a\n"
+ "\t\tJSON array (--format=json).\n"
+ "\n"
+ "\t\tmessages\n"
+ "\n"
+ "\t\tOutput the message IDs of all messages matching the search\n"
+ "\t\tterms, either one per line (--format=text) or as a JSON array\n"
+ "\t\t(--format=json).\n"
+ "\n"
+ "\t\tfiles\n"
+ "\n"
+ "\t\tOutput the filenames of all messages matching the search\n"
+ "\t\tterms, either one per line (--format=text) or as a JSON array\n"
+ "\t\t(--format=json).\n"
+ "\n"
+ "\t\ttags\n"
+ "\n"
+ "\t\tOutput all tags that appear on any message matching the search\n"
+ "\t\tterms, either one per line (--format=text) or as a JSON array\n"
+ "\t\t(--format=json).\n"
+ "\n"