avoid duplicate & generic standard option description

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49511 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.cost/main.c

@@ -168,13 +168,13 @@ int main(int argc, char *argv[])
     opt7 = G_define_standard_option(G_OPT_V_INPUT);
     opt7->key = "start_points";
     opt7->required = NO;
-    opt7->description = _("Name of starting vector points map");
+    opt7->label = _("Name of starting vector points map");
     opt7->guisection = _("Start");
 
     opt8 = G_define_standard_option(G_OPT_V_INPUT);
     opt8->key = "stop_points";
     opt8->required = NO;
-    opt8->description = _("Name of stop vector points map");
+    opt8->label = _("Name of stop vector points map");
     opt8->guisection = _("Stop");
 
     opt9 = G_define_standard_option(G_OPT_R_INPUT);