Re: [PATCH 0/4] MR5436: win32u: Replace sprintf with snprintf to avoid deprecation warnings on macOS.

[Rémi Bernon (＠rbernon)]

Nit: Maybe make the buffer size depend on `SID_MAX_SUB_AUTHORITIES` to be safe (ie: `16 + 11 * (2 + SID_MAX_SUB_AUTHORITIES) + 1`), or C_ASSERT that it is larger?