Commit 38c0da9 caused 2 more failures in winetest msvcrt:printf

Commit 0.4.15-dev-5698-g38c0da9 by Katayama Hirofumi introduced 2 additional fails in the winetest for msvcrt:printf as can be seen here:

VBox: https://reactos.org/testman/compare.php?ids=86033,86035
KVM:  https://reactos.org/testman/compare.php?ids=86032,86034

 Commit Message: * [CRT] printf/wprintf: Support %zu (#5056)
"%zu" is a printf format specifier for type size_t. Some apps assume the
implementation of this specifier. CORE-17787