Consistently use 'af' as an argument name for address family. Now both gethostbyname2(3) and gethostbyaddr(3) use the same argument name. The same argument name is also used in implementations of those functions.
Consistently use 'af' as an argument name for address family.
Now both gethostbyname2(3) and gethostbyaddr(3) use the same argument name.
The same argument name is also used in implementations of those functions.

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