hg: jdk/submit: 8223532: Don't try creating IPv4 sockets in NetworkInterface.c if IPv4 is not supported

[jianglizhou at google.com]

Changeset: 0fefe612e3b8
Author:    aeubanks
Date:      2019-05-07 16:18 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/0fefe612e3b8

8223532: Don't try creating IPv4 sockets in NetworkInterface.c if IPv4 is not supported
Reviewed-by: dfuchs, chegar
Contributed-by: aeubanks at google.com

! src/java.base/unix/native/libnet/NetworkInterface.c