v.category: do not add new centroids by default

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@58312 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.category/main.c

@@ -85,7 +85,7 @@ int main(int argc, char *argv[])
     field_opt->guisection = _("Selection");
 
     type_opt = G_define_standard_option(G_OPT_V3_TYPE);
-    type_opt->answer = "point,line,area,face";
+    type_opt->answer = "point,line,centroid,face";
     type_opt->guisection = _("Selection");
 
     id_opt = G_define_standard_option(G_OPT_V_IDS);