C Views: made an error message more specific

src/obiview.c

@@ -775,7 +775,7 @@ static int create_column_dict(Obiview_p view)
 		if (ht_get(view->column_dict, (((view->infos)->column_references)[i]).alias) != NULL)
 		{
 			obi_set_errno(OBIVIEW_ERROR);
-			obidebug(1, "\nError: the name/alias identifying a column in a view is not unique");
+			obidebug(1, "\nError: the name/alias identifying a column in a view is not unique: %s", (((view->infos)->column_references)[i]).alias);
 			return -1;
 		}