Merge pull request #260 from Telekom-PD/fix_hosts_update_hang

Fix hang on systems with interactive rm

Author: seth-reeser

lib/vagrant-hostmanager/hosts_file/updater.rb

@@ -45,7 +45,7 @@ def update_guest(machine)
             if windir
               machine.communicate.sudo("mv -force /tmp/hosts.#{machine.name} #{realhostfile}")
             else
-              machine.communicate.sudo("cat /tmp/hosts.#{machine.name} > #{realhostfile} && rm /tmp/hosts.#{machine.name}")
+              machine.communicate.sudo("cat /tmp/hosts.#{machine.name} > #{realhostfile} && rm -f /tmp/hosts.#{machine.name}")
             end
           end