added getnetbyname/gethostbyname2 to leak detective whitelist, used by pluto

src/libstrongswan/utils/leak_detective.c

@@ -170,8 +170,10 @@ char *whitelist[] = {
 	"getprotobynumber",
 	"getservbyport",
 	"getservbyname",
+	"gethostbyname2",
 	"gethostbyname_r",
 	"gethostbyname2_r",
+	"getnetbyname",
 	"getpwnam_r",
 	"getgrnam_r",
 	"register_printf_function",