github-728: improve code styling

Author: ArturMoczulski

lib/rollbar/util/ip_anonymizer.rb

@@ -5,25 +5,17 @@ module IPAnonymizer
 
       def self.anonymize_ip(ip_string)
         return ip_string unless Rollbar.configuration.anonymize_user_ip
-        
         ip = IPAddr.new(ip_string)
-          
-        if ip.ipv6?
-          return anonymize_ipv6 ip
-        end
-        
-        if ip.ipv4?
-          return anonymize_ipv4 ip
-        end
-        
+        return anonymize_ipv6 ip if ip.ipv6?
+        return anonymize_ipv4 ip if ip.ipv4?
       rescue
         nil
       end
 
       def self.anonymize_ipv4(ip)
         ip_parts = ip.to_s.split '.'
 
-        ip_parts[ip_parts.count-1] = "0"
+        ip_parts[ip_parts.count - 1] = '0'
 
         IPAddr.new(ip_parts.join('.')).to_s
       end