Automatic merge from submit-queue

resolv.conf nameserver line has only one entry, ignore trailing garbage

**What this PR does / why we need it**:

Per the resolv.conf man page "name servers may be  listed,  one  per  keyword." Some tools such as udhcpc take advantage of this to append comments to nameserver entries. For example: `nameserver 8.8.8.8 # eth0`. This updates the resolv.conf parser to ignore trailing garbage on nameserver lines.

**Release note**:
NONE