tests: add epoll_create.test

* tests/epoll_create.c: New file.
* tests/epoll_create.test: New test.
* tests/.gitignore: Add epoll_create.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add epoll_create.test.
diff --git a/tests/.gitignore b/tests/.gitignore
index ea67040..0478e18 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -25,6 +25,7 @@
 dup
 dup2
 dup3
+epoll_create
 epoll_create1
 eventfd
 execve