fix: use correct function to print 'enum bt_ctf_scope'

Building with GCC10 results in the following error:

implicit conversion from 'enum bt_ctf_scope' to 'enum bt_field_path_scope' [-Werror=enum-conversion]

Change-Id: Id1144231f8439444696e4683dff2b0abf0d26d60
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Reviewed-on: https://review.lttng.org/c/babeltrace/+/2851
Reviewed-by: Simon Marchi <simon.marchi@efficios.com>
Tested-by: jenkins <jenkins@lttng.org>

src/ctf-writer/utils.h

@@ -203,7 +203,7 @@ GString *bt_ctf_field_path_string(struct bt_ctf_field_path *path)
 		goto end;
 	}
 
-	g_string_append_printf(str, "[%s", bt_common_scope_string(
+	g_string_append_printf(str, "[%s", bt_ctf_scope_string(
 		bt_ctf_field_path_get_root_scope(path)));
 
 	for (i = 0; i < bt_ctf_field_path_get_index_count(path); i++) {