[Translation] Fix CSV escape char in CsvFileLoader on PHP >= 7.4

Author: alexandre-daubois

Loader/CsvFileLoader.php

@@ -22,7 +22,7 @@ class CsvFileLoader extends FileLoader
 {
     private $delimiter = ';';
     private $enclosure = '"';
-    private $escape = '\\';
+    private $escape = '';
 
     /**
      * {@inheritdoc}
@@ -38,7 +38,7 @@ protected function loadResource(string $resource)
         }
 
         $file->setFlags(\SplFileObject::READ_CSV | \SplFileObject::SKIP_EMPTY);
-        $file->setCsvControl($this->delimiter, $this->enclosure, $this->escape);
+        $file->setCsvControl($this->delimiter, $this->enclosure, '' === $this->escape && \PHP_VERSION_ID < 70400 ? '\\' : $this->escape);
 
         foreach ($file as $data) {
             if (false === $data) {
@@ -56,10 +56,10 @@ protected function loadResource(string $resource)
     /**
      * Sets the delimiter, enclosure, and escape character for CSV.
      */
-    public function setCsvControl(string $delimiter = ';', string $enclosure = '"', string $escape = '\\')
+    public function setCsvControl(string $delimiter = ';', string $enclosure = '"', string $escape = '')
     {
         $this->delimiter = $delimiter;
         $this->enclosure = $enclosure;
-        $this->escape = $escape;
+        $this->escape = '' === $escape && \PHP_VERSION_ID < 70400 ? '\\' : $escape;
     }
 }