make test parallel network fails with 1..0 # Skipped: localhost does not resolve to ::1 #15825

...
[----------] Global test environment tear-down
[==========] 62 tests from 7 test cases ran. (242 ms total)
[  PASSED  ] 62 tests.
/usr/bin/python2.7 tools/test.py --mode=release -J \
	async-hooks \

	async-hooks \
	default \
	addons addons-napi \
	known_issues
=== release test-https-connect-address-family ===                              
Path: parallel/test-https-connect-address-family
code_learn/node/test/parallel/test-https-connect-address-family.js:39
    throw err;
    ^

Error: getaddrinfo EAI_AGAIN
    at Object._errnoException (util.js:1023:13)
    at errnoException (dns.js:63:15)
    at GetAddrInfoReqWrap.onlookupall [as oncomplete] (dns.js:112:26)
Command: out/Release/node code_learn/node/test/parallel/test-https-connect-address-family.js
=== release test-tls-connect-address-family ===                                
Path: parallel/test-tls-connect-address-family
/code_learn/node/test/parallel/test-tls-connect-address-family.js:38
    throw err;
    ^

Error: getaddrinfo EAI_AGAIN
    at Object._errnoException (util.js:1023:13)
    at errnoException (dns.js:63:15)
    at GetAddrInfoReqWrap.onlookupall [as oncomplete] (dns.js:112:26)
Command: out/Release/node code_learn/node/test/parallel/test-tls-connect-address-family.js
[02:33|% 100|+ 1969|-   2]: Done                                               
Makefile:201: recipe for target 'test' failed
make: *** [test] Error 1

$ ./node test/parallel/test-https-connect-address-family.js
1..0 # Skipped: localhost does not resolve to ::1

$ cat /etc/hosts
127.0.0.1	localhost
127.0.1.1	colin-t470s

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

127.0.0.1       localhost
127.0.1.1       colin-t470s

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters