misc. changes part 2
See the commit message for the details.
Main changes:
- make
pw_getrandom()
consistently return a negative errno and depend less onerrno
- remove
pw_proxy_get_core()
since it was not used or declared anywhere - add
-Werror={return-type,old-style-declaration,old-style-definition,missing-parameter-type,strict-prototypes}
The rest are mostly cosmetic changes.