add htons() comment, fix createGratuitousARP() comment

Author: pashagolub

ipmanager/basicConfigurer.go

@@ -53,7 +53,7 @@ const (
 	IPv4AddressSize = 4
 )
 
-// arpSendGratuitous is a function that sends gratuitous ARP requests
+// createGratuitousARP prepares a packet with a gratuitous ARP request
 func (c *BasicConfigurer) createGratuitousARP() ([]byte, error) {
 	// Create the Ethernet layer
 	ethLayer := &layers.Ethernet{

ipmanager/basicConfigurer_linux.go

@@ -6,6 +6,7 @@ import (
 	"syscall"
 )
 
+// htons converts uint16 to network byte order
 func htons(i uint16) uint16 {
 	return (i<<8)&0xff00 | i>>8
 }