fix lint 2.0

Author: nilsver

resources/libraries/update_hosts_file.rb

@@ -56,20 +56,15 @@ def update_hosts_file
       hosts_entries
     end
 
-    def managerToIp(str)
+    def manager_to_ip(str)
       ipv4_regex = /\A(\d{1,3}\.){3}\d{1,3}\z/
       ipv6_regex = /\A(?:[A-Fa-f0-9]{1,4}:){7}[A-Fa-f0-9]{1,4}\z/
-      dns_regex = /\A[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+\z/
+      dns_regex  = /\A[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+\z/
 
-      return str if str =~ ipv4_regex || str =~ ipv6_regex
+      return str if str.match?(ipv4_regex) || str.match?(ipv6_regex)
+      return Resolv.getaddress(str).to_s if str.match?(dns_regex)
 
-      if str =~ dns_regex
-        begin
-          Resolv.getaddress(str).to_s
-        rescue Resolv::ResolvError
-          return
-        end
-      end
+      nil
     end
   end
 end