This test fails in Portage with aggressive PORTAGE_NICENESS, PORTAGE_IONICE_COMMAND,
and PORTAGE_SCHEDULING_POLICY.

Bug: https://bugs.gentoo.org/924653
--- a/test/test-thread-priority.c
+++ b/test/test-thread-priority.c
@@ -90,7 +90,6 @@ TEST_IMPL(thread_priority) {
 #ifdef __linux__
   ASSERT_OK(uv_thread_setpriority(pthread_self(), UV_THREAD_PRIORITY_LOWEST));
   ASSERT_OK(uv_thread_getpriority(pthread_self(), &priority));
-  ASSERT_EQ(priority, (0 - UV_THREAD_PRIORITY_LOWEST * 2));
 #endif
 
   uv_sem_post(&sem);