PHP7 compliance

accounting-for-woocommerce/inc/utils.php

@@ -17,7 +17,7 @@ function woocommerce_accounting_export_select_options($options, $option_name){
  * 
  * @return string
  */
-function woocommerce_accounting_format_number($number) : string{
+function woocommerce_accounting_format_number($number){
 	global $rounding_precision;
 	$dec_separator = get_option('woocommerce_accounting_export_decimal_separator');
 	$zero_opt = get_option('woocommerce_accounting_export_zero_opt');
@@ -37,7 +37,7 @@ function woocommerce_accounting_format_number($number) : string{
  * 
  * @return float
  */
-function woocommerce_accounting_unformat_number($string) : float{
+function woocommerce_accounting_unformat_number($string){
 	return (float) str_replace(',', '.', $string);
 }