Include the fcntl.h portability header where it's needed

Summary: There are a few places that need this, so make it so.

Reviewed By: yfeldblum

Differential Revision: D3667234

fbshipit-source-id: 84c16e1b036d9c2afddf03aa84c43210c5672f0a

folly/FileUtil.h

@@ -19,6 +19,7 @@
 #include <folly/Conv.h>
 #include <folly/Portability.h>
 #include <folly/ScopeGuard.h>
+#include <folly/portability/Fcntl.h>
 #include <folly/portability/SysUio.h>
 #include <folly/portability/Unistd.h>
 
@@ -26,7 +27,6 @@
 #include <limits>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <fcntl.h>
 
 namespace folly {
 

folly/experimental/test/TestUtilTest.cpp

@@ -18,7 +18,6 @@
 
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <fcntl.h>
 
 #include <system_error>
 
@@ -28,6 +27,7 @@
 
 #include <folly/Memory.h>
 #include <folly/portability/Environment.h>
+#include <folly/portability/Fcntl.h>
 
 using namespace folly;
 using namespace folly::test;

folly/test/FileTest.cpp

@@ -17,6 +17,7 @@
 #include <folly/File.h>
 
 #include <folly/String.h>
+#include <folly/portability/Fcntl.h>
 
 #include <gtest/gtest.h>