g10: Implement gpg --quick-revuid

* g10/revoke.c (get_default_uid_revocation_reason): New.
* g10/keyedit.c (menu_revuid): Break out creation of uid revocation
into new function core_revuid.
* g10/keyedit.c (keyedit_quick_revuid): New. Selects key and
uid, invokes core_revuid.
* g10/gpg.c (main): Handle --quick-revuid argument.
* doc/gpg.texi: Document --quick-revuid.

--

This functionality is a counterpart to --quick-adduid, and will be
useful for projects that depend programmatically on gpg to revoke user
IDs (one such example is "monkeysphere-host revoke-servicename").

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>

- Minor re-indentation work.
- Changed a "0 == memcmp" to "!memcmp"
- Removed tests/openpgp/quick-key-manipulation.test from the
  Makefile.  This test needs to be converted to gpgscm.
- Removed example from whats-new-in-2.1.txt because that is generated.

Signed-off-by: Werner Koch <wk@gnupg.org>

g10/gpg.c

@@ -118,6 +118,7 @@ enum cmd_and_opt_values
     aQuickLSignKey,
     aQuickAddUid,
     aQuickAddKey,
+    aQuickRevUid,
     aListConfig,
     aListGcryptConfig,
     aGPGConfList,
@@ -431,6 +432,8 @@ static ARGPARSE_OPTS opts[] = {
   ARGPARSE_c (aQuickAddUid,  "quick-adduid",
               N_("quickly add a new user-id")),
   ARGPARSE_c (aQuickAddKey,  "quick-addkey", "@"),
+  ARGPARSE_c (aQuickRevUid,  "quick-revuid",
+              N_("quickly revoke a user-id")),
   ARGPARSE_c (aFullKeygen,  "full-gen-key" ,
               N_("full featured key pair generation")),
   ARGPARSE_c (aGenRevoke, "gen-revoke",N_("generate a revocation certificate")),
@@ -2434,6 +2437,7 @@ main (int argc, char **argv)
 	  case aQuickKeygen:
 	  case aQuickAddUid:
 	  case aQuickAddKey:
+	  case aQuickRevUid:
 	  case aExportOwnerTrust:
 	  case aImportOwnerTrust:
           case aRebuildKeydbCaches:
@@ -3785,6 +3789,7 @@ main (int argc, char **argv)
       case aQuickKeygen:
       case aQuickAddUid:
       case aQuickAddKey:
+      case aQuickRevUid:
       case aFullKeygen:
       case aKeygen:
       case aImport:
@@ -4204,6 +4209,18 @@ main (int argc, char **argv)
         }
 	break;
 
+      case aQuickRevUid:
+        {
+          const char *uid, *uidtorev;
+
+          if (argc != 2)
+            wrong_args ("--quick-revuid USER-ID USER-ID-TO-REVOKE");
+          uid = *argv++; argc--;
+          uidtorev = *argv++; argc--;
+          keyedit_quick_revuid (ctrl, uid, uidtorev);
+        }
+	break;
+
       case aFastImport:
         opt.import_options |= IMPORT_FAST;
       case aImport: