osl: test/uniquepipename.hxx use <> delimiters for headers

Change-Id: Idabde42af4eed1000e32d605cf93f359ed218ff0

include/osl/test/uniquepipename.hxx

@@ -17,11 +17,12 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#include "sal/types.h"
-#include "cppunit/TestAssert.h"
-#include "osl/process.h"
-#include "rtl/ustring.h"
-#include "rtl/ustring.hxx"
+#include <sal/types.h>
+#include <rtl/ustring.h>
+#include <rtl/ustring.hxx>
+#include <cppunit/TestAssert.h>
+
+#include <osl/process.h>
 
 namespace osl {
 namespace test {