[CRIU] ✗ travis-ci: failure for files: Tune up false perror message

[Patchwork]

== Series Details ==

Series: files: Tune up false perror message
URL   : https://patchwork.criu.org/series/487/
State : failure

== Logs ==

For more details see: https://travis-ci.org/criupatchwork/criu/builds/154558264