wkd: New option --add-revocs and some fixes.
* tools/gpg-wks.h (opt): Add add_revocs. * tools/wks-util.c (wks_get_key): Add arg 'binary'. (wks_armor_key): New. (wks_find_add_revocs): New. (wks_cmd_install_key): Get key in binary mode and add revocations if enabled. * tools/gpg-wks-client.c (oAddRevocs): New. (opts): Add --add-revocs. (parse_arguments): Set option, (command_send): Get key in binary mode, add revocations if enabled, and explictly armor key. Remove kludge to skip the Content-type line in no_encrypt mode. (mirror_one_keys_userid): Always filter the key to get rid of the armor as received from dirmngr. Add revocations from the local keyring.
Note that this also fixes an oddity of the new mirror command which
used to store the keys armored as received from dirmngr.