Use a string for the SQL text

Ref: slevomat/coding-standard#1532

Signed-off-by: William Desportes <williamdes@wdes.fr>

Author: williamdes

tests/Builder/AlterStatementTest.php

@@ -107,24 +107,22 @@ public function testBuilderPartitions(): void
         );
 
         $parser = new Parser(
-            <<<SQL
-            ALTER TABLE trips PARTITION BY RANGE (MONTH(trip_date))
-            (
-                PARTITION p01 VALUES LESS THAN (02),
-                PARTITION p02 VALUES LESS THAN (03),
-                PARTITION p03 VALUES LESS THAN (04),
-                PARTITION p04 VALUES LESS THAN (05),
-                PARTITION p05 VALUES LESS THAN (06),
-                PARTITION p06 VALUES LESS THAN (07),
-                PARTITION p07 VALUES LESS THAN (08),
-                PARTITION p08 VALUES LESS THAN (09),
-                PARTITION p09 VALUES LESS THAN (10),
-                PARTITION p10 VALUES LESS THAN (11),
-                PARTITION p11 VALUES LESS THAN (12),
-                PARTITION p12 VALUES LESS THAN (13),
-                PARTITION pmaxval VALUES LESS THAN MAXVALUE
-            );
-            SQL
+            'ALTER TABLE trips PARTITION BY RANGE (MONTH(trip_date))'
+            . ' (' . "\n"
+            . ' PARTITION p01 VALUES LESS THAN (02),' . "\n"
+            . ' PARTITION p02 VALUES LESS THAN (03),' . "\n"
+            . ' PARTITION p03 VALUES LESS THAN (04),' . "\n"
+            . ' PARTITION p04 VALUES LESS THAN (05),' . "\n"
+            . ' PARTITION p05 VALUES LESS THAN (06),' . "\n"
+            . ' PARTITION p06 VALUES LESS THAN (07),' . "\n"
+            . ' PARTITION p07 VALUES LESS THAN (08),' . "\n"
+            . ' PARTITION p08 VALUES LESS THAN (09),' . "\n"
+            . ' PARTITION p09 VALUES LESS THAN (10),' . "\n"
+            . ' PARTITION p10 VALUES LESS THAN (11),' . "\n"
+            . ' PARTITION p11 VALUES LESS THAN (12),' . "\n"
+            . ' PARTITION p12 VALUES LESS THAN (13),' . "\n"
+            . ' PARTITION pmaxval VALUES LESS THAN MAXVALUE' . "\n"
+            . ');'
         );
         $stmt = $parser->statements[0];