IWYU fixes for sigchainlib/sigchain.cc
This change adds the necessary headers for std::initializer_list, errno,
and strerror.
Bug: None
Test: m
Change-Id: I9b97635f378a205604c75601cddd6f87883cdb4b
diff --git a/sigchainlib/sigchain.cc b/sigchainlib/sigchain.cc
index 1727f88..cc1b78d 100644
--- a/sigchainlib/sigchain.cc
+++ b/sigchainlib/sigchain.cc
@@ -22,10 +22,13 @@
#endif
#include <dlfcn.h>
+#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
+#include <initializer_list>
#include <utility>
#include "sigchain.h"