Set up the file permission correctly.

Change-Id: I76e896c9ee5680fec332a5586e049f05f6eb8904
diff --git a/lib/ExecutionEngine/Compiler.cpp b/lib/ExecutionEngine/Compiler.cpp
index 17890d1..68ca985 100644
--- a/lib/ExecutionEngine/Compiler.cpp
+++ b/lib/ExecutionEngine/Compiler.cpp
@@ -317,7 +317,7 @@
 
   int Fd = -1;
   Fd = open(objPath.c_str(), O_CREAT | O_RDWR | O_TRUNC,
-            S_IRUSR , S_IWUSR , S_IRGRP , S_IROTH /* 0644 */);
+            S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH /* 0644 */);
 
   if (Fd < 0) {
     LOGE("Fail to open file '%s'", objPath.c_str());