Eliminate the word should for will and need.

Config/DynamicDNS/update_dns.sh

@@ -42,7 +42,7 @@ function usage {
 }
 
 function check {
-	# Accepts parameter of status and whether the program should quit.
+	# Accepts parameter of status and whether the program is needs to quit.
 	status=$1
 	quit=$2
 	if [[ $status != 0 ]]; then