vio-svc: fix a typo in a comment (a redundant just).
#define INVALID_FILE_HANDLE ((uint64_t)(-1))
// Some of the constants defined in Windows doesn't match the values that are
-// used in Linux. Don't try just to understand, just redefine them to match.
+// used in Linux. Don't try to understand, just redefine them to match.
#undef O_DIRECTORY
#undef O_EXCL
#undef S_IFMT
