Implement lstat by stat in nacl_io

native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc

Index: native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc b/native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc
index 672f51c30825aa1c9a8b4febf07f1047128e7b0c..bbb3896b0a0b0791ea0049b2420faa88fc4085d7 100644
--- a/native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc
+++ b/native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc
@@ -634,8 +634,7 @@ int KernelProxy::truncate(const char* path, off_t len) {
 }
 
 int KernelProxy::lstat(const char* path, struct stat* buf) {
-  errno = ENOSYS;
-  return -1;
+  return stat(path, buf);
 }
 
 int KernelProxy::rename(const char* path, const char* newpath) {