Plumbing though mode parameter to open, since fusefs can make use of it.

native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc

Index: native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc b/native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc
index 0cc3e9045fddc6e1cc4a02b7bd3fec372c3d232c..58fa1c176a43a877a1c32e042ce5c28eeb2a79b8 100644
--- a/native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc
+++ b/native_client_sdk/src/libraries/nacl_io/kernel_wrap_glibc.cc
@@ -272,8 +272,8 @@ int WRAP(munmap)(void* addr, size_t length) {
   return REAL(munmap)(addr, length);
 }
 
-int WRAP(open)(const char* pathname, int oflag, mode_t cmode, int* newfd) {
-  *newfd = ki_open(pathname, oflag);
+int WRAP(open)(const char* pathname, int oflag, mode_t mode, int* newfd) {
+  *newfd = ki_open(pathname, oflag, mode);
   RTN_ERRNO_IF(*newfd < 0);
   return 0;
 }
@@ -606,9 +606,9 @@ int _real_munmap(void* addr, size_t length) {
   return REAL(munmap)(addr, length);
 }
 
-int _real_open(const char* pathname, int oflag, mode_t cmode, int* newfd) {
+int _real_open(const char* pathname, int oflag, mode_t mode, int* newfd) {
   CHECK_REAL(open);
-  return REAL(open)(pathname, oflag, cmode, newfd);
+  return REAL(open)(pathname, oflag, mode, newfd);
 }
 
 int _real_open_resource(const char* file, int* fd) {