Fix description of '--verbose' option of 'ls-groups' command

The group type is not printed out anymore, thus removing it from the
description and the documentation.

Change-Id: I8d52daf6404858c2394db6737df8fbba3a87ff51
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

Documentation/cmd-ls-groups.txt

@@ -78,9 +78,8 @@ This option can't be used together with the '--project' option.
 --verbose::
 -v::
 	Enable verbose output with tab-separated columns for the
-	group name, UUID, description, type (`SYSTEM` or `INTERNAL`),
-	owner group name, owner group UUID and whether the group is
-	visible to all (`true` or `false`).
+	group name, UUID, description, owner group name, owner group UUID
+	and whether the group is visible to all (`true` or `false`).
 +
 If a group has been "orphaned", i.e. its owner group UUID refers to a
 nonexistent group, the owner group name field will read `n/a`.

gerrit-server/src/main/java/com/google/gerrit/server/group/ListGroups.java

@@ -76,7 +76,7 @@ public class ListGroups implements RestReadView<TopLevelResource> {
 
   @Option(name = "--verbose", aliases = {"-v"},
       usage = "verbose output format with tab-separated columns for the " +
-          "group name, UUID, description, type, owner group name, " +
+          "group name, UUID, description, owner group name, " +
           "owner group UUID, and whether the group is visible to all")
   private boolean verboseOutput;