At latest edk2 version, there is build failure when building ShellPkg with VS2012x86, which results from uninitialized local variables. Cc: Jaben Carsey <jaben.carsey@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Zhichao Gao <zhichao.gao@intel.com> Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com> Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>