Description: Fix autopkgtest.
Author: Utkarsh Gupta <utkarsh@debian.org>
Bug-Debian: https://bugs.debian.org/979700

--- a/spec/in-paralell_spec.rb
+++ b/spec/in-paralell_spec.rb
@@ -1,5 +1,6 @@
 require 'rspec'
-require_relative('../lib/in_parallel')
+require 'in_parallel'
+
 include InParallel
 TMP_FILE = Dir.mktmpdir + 'test_file.txt'