Fix grammar error in SqlGenerator.java

Signed-off-by: luckygc <[email protected]>

Author: luckygc

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGenerator.java

@@ -69,7 +69,7 @@ class SqlGenerator {
 	/**
 	 * Length of an aggregate path that is one longer then the root path.
 	 */
-	private static final int FIRST_NON_ROOT_LENTH = 2;
+	private static final int FIRST_NON_ROOT_LENGTH = 2;
 
 	private final RelationalPersistentEntity<?> entity;
 	private final RelationalMappingContext mappingContext;