wks: Add option --realclean to gpg-wks-client.
* tools/gpg-wks-client.c (oRealClean): New. (opts): Add "realclean". (parse_arguments): Implement. (main): Take a copy of the module name to fix bad assignment from a former patch. * tools/gpg-wks-server.c (main): Ditto. * tools/gpg-wks.h (opt): Add field realclean. * tools/wks-util.c (wks_get_key): Call gpg with export-realclean depending on the new option.
The default for gpg-wks-client is to install keys with all valid key
signatures. The new option will eventually allow to install the keys
only with key signatures done by trusted-keys. Also the export-option
is in gpg, it requires one more gpg patch to make it actually work.