Fix of invalid price for integer currencies when amount less then group size

Author: Volodymyr Kublytskyi

lib/internal/Magento/Framework/Locale/Format.php

@@ -131,7 +131,6 @@ public function getPriceFormat($localeCode = null, $currencyCode = null)
         } else {
             $group = strrpos($format, '.');
         }
-        $integerRequired = strpos($format, '.') - strpos($format, '0');
 
         $result = [
             //TODO: change interface
@@ -141,7 +140,7 @@ public function getPriceFormat($localeCode = null, $currencyCode = null)
             'decimalSymbol' => $decimalSymbol,
             'groupSymbol' => $groupSymbol,
             'groupLength' => $group,
-            'integerRequired' => $integerRequired,
+            'integerRequired' => $totalPrecision == 0,
         ];
 
         return $result;