Crash if hosts file doesn't exist on Windows 10

[Spartelfant]

My hosts file had gotten messy (unrelated to hostsupdater) so I figured the simplest remedy was to delete it, assuming hostsupdater would recreate it if needed.

But instead %WINDIR%\System32\drivers\etc\hosts not existing lead to hostsupdater crashing, in turn causing vagrant to fail during provisioning. I've attached a textfile with the error output. As a sidenote, I was running vagrant from an elevated command prompt.

hostsupdater error output.txt

Please let me know if I can contribute in any way to solving this or narrowing down the cause.

[cgsmith]

@Spartelfant good catch on this bug. I will make a check for a hosts file before attempting a write.