v.edit: standardize flags ('b' is used for 'do not build topo')

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49180 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.edit/args.c

@@ -192,7 +192,7 @@ int parser(int argc, char *argv[], struct GParams *params,
     params->header->guisection = _("Input");
 
     params->topo = G_define_flag();
-    params->topo->key = 't';
+    params->topo->key = 'b';
     params->topo->description = _("Do not build topology");
 
     params->move_first = G_define_flag();