PHPCS fixes

Author: AdamVyborny

src/CsvWriter.php

@@ -147,7 +147,7 @@ public function rowToStr(array $row)
             $columnValue = ($column === false) ? '0' : ($column ?? '');
 
             $escapedColumn = str_replace($enclosure, $escapedEnclosure, $columnValue);
-            $return[] = sprintf("%s%s%s", $enclosure, $escapedColumn, $enclosure);
+            $return[] = sprintf('%s%s%s', $enclosure, $escapedColumn, $enclosure);
         }
         return implode($this->getDelimiter(), $return) . $this->lineBreak;
     }

tests/CsvWriteTest.php

@@ -63,11 +63,11 @@ public function testWrite()
                 3, null,
             ],
             [
-                'true', 1.123
+                'true', 1.123,
             ],
             [
-                '1', 'null'
-            ]
+                '1', 'null',
+            ],
         ];
 
         foreach ($rows as $row) {