API CHANGE: msg_t now carries void pointers

Hello revising IOTlers,

another day another API change: After some discussion in [1] we decided to unify the typing of pointers of unspecified type. The first fall-out from that discussion was the changing of the pointer of the content.ptr field of msg_t. It is now void * instead of char *, so no explicit casting is needed anymore when using it.

Cheers, Martine

[1] https://github.com/RIOT-OS/RIOT/issues/5497

Hi again, sorry, forgot to quote the PR that changed it: [2].

Cheers, Martine

[2] https://github.com/RIOT-OS/RIOT/pull/5498