BIN: analyse-headers: adds -k flag like curl

This flag will prevent curl from doing certificate checks

The long form, `--insecure` can also be used

Thanks Rob Norman for the suggestion

bin/.bin/webtest/analyse-headers

@@ -432,6 +432,7 @@ usage(){
 
 	Options:
 	-h, --help              Display this help and exit
+	-k, --insecure          Ignores certificate errors
 "
 }
 
@@ -472,11 +473,13 @@ done
 set -- "${options[@]}"
 unset options
 
+insecure=""
 
 # Read the options and set stuff
 while [[ $1 = -?* ]]; do
 	case $1 in
 		-h|--help) usage; exit;;
+		-k|--insecure) insecure="-k" ;;
 		--) shift; break ;;
 		*) die "invalid option: '$1'." ;;
 	esac
@@ -493,7 +496,7 @@ url="${args[0]}"
 if [ "$url" = "-" ]; then
 	headers="$(cat -)"
 else
-	headers="$(curl -s -I "$url")"
+	headers="$(curl -s -I $insecure "$url")"
 fi
 
 missingHeaders="x-frame-options