[CRIU] ✓ travis-ci: success for ns: Fix error return value in __get_ns_id()

[Patchwork]

== Series Details ==

Series: ns: Fix error return value in __get_ns_id()
URL   : https://patchwork.criu.org/series/1085/
State : success

== Logs ==

For more details see: https://travis-ci.org/criupatchwork/criu/builds/190533503