MSFT_HostsFile: Host entries that have multiple entries on a single line fail

Details of the scenario you tried and the problem that is occurring

When defining multiple entries on a single line it will write them to the host file every time the LCM kicks off.

Line 233 -259 takes in account for multiple entries per line but then a compare happens later against that array and a string that was passed into the Get-HostEntry.

Suggested solution to the issue

Change line 368
FROM: if ($result.Host -eq $HostName)
TO: if ([string]$result.Host -eq HostName)

The DSC configuration that is used to reproduce the issue (as detailed as possible)

HostsFile "Test1"
            {
                HostName  = 'test-ocsp-responder testVM.lab.local'
                IPAddress = '192.168.1.50'
                Ensure    = 'Present'
            }

The operating system the target node is running

OsName               : Microsoft Windows Server 2012 R2 Standard
OsOperatingSystemSKU : StandardServerEdition
OsArchitecture       : 64-bit
WindowsBuildLabEx    : 9600.19358.amd64fre.winblue_ltsb_escrow.190505-1600
OsLanguage           : en-US
OsMuiLanguages       : {en-US}

Version and build of PowerShell the target node is running

Name                           Value
----                           -----
PSVersion                      5.1.14409.1018
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14409.1018
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Version of the DSC module that was used ('dev' if using current dev branch)

6.1.0.0 The code for this issue looks the same.

Start by locating the MSFT_HostsFile implementation and inspect lines 233-259, where multiple entries per line are handled, followed by the comparison around line 368. Reproduce the issue with the provided HostsFile configuration and verify that repeated LCM runs do not rewrite an unchanged host entry.