epoll_create1: fix flags decoding
* xlat/epollflags.in: Remove EPOLL_NONBLOCK, provide fallback definition
for EPOLL_CLOEXEC.
* tests/epoll_create1.c: New file.
* tests/epoll_create1.expected: Likewise.
* tests/epoll_create1.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add epoll_create1.
(TESTS): Add epoll_create1.test.
(EXTRA_DIST): Add epoll_create1.expected.
* tests/.gitignore: Add epoll_create1.
diff --git a/xlat/epollflags.in b/xlat/epollflags.in
index a5ab4d0..4f6b192 100644
--- a/xlat/epollflags.in
+++ b/xlat/epollflags.in
@@ -1,2 +1 @@
-EPOLL_CLOEXEC
-EPOLL_NONBLOCK
+EPOLL_CLOEXEC O_CLOEXEC