[PATCH 1/5] sysvipc: Fix compat msgctl

[Florian Weimer]

* Adhemerval Zanella:

> The __IPC64 flags is meant to be used to enable the new sysv struct
> format when the architectures supports it (ARCH_WANT_IPC_PARSE_VERSION
> config flag on Linux kernel).

Doesn't this need a bug number (with a description of the impact in the
bug, if possible).

Thanks,
Florian