Use getaddrinfo() instead of gethostbyname()

[alexander-naumov]

OBS build reports warning:

pam2control.x86_64: I: binary-or-shlib-calls-gethostbyname /lib64/security/pam2control.so
The binary calls gethostbyname(). Please port the code to use getaddrinfo().

[alexander-naumov]

fixed