tentative fix for test failing when in submodule

Gabriele Contini

2020-05-16 004073a7b79dc9c455416703d30f4922b4577172

 test/library/os_linux_test.cpp

@@ -5,7 +5,7 @@

#include <licensecc_properties.h>
#include <licensecc_properties_test.h>
#include "../../src/library/base/StringUtils.h"
#include "../../src/library/base/string_utils.h"
#include "../../src/library/os/os.h"
#include "../../src/library/os/execution_environment.hpp"