documentation fix.

h2/src/main/org/h2/index/PageDataNode.java

@@ -29,7 +29,7 @@ import org.h2.util.MemoryUtils;
  * <li>count of all children (-1 if not known): int</li>
  * <li>entry count: short</li>
  * <li>rightmost child page id: int</li>
- * <li>entries (key: varLong, child page id: int)</li>
+ * <li>entries (child page id: int, key: varLong)</li>
  * </ul>
  * The key is the largest key of the respective child, meaning key[0] is the
  * largest key of child[0].

h2/src/main/org/h2/store/FileStore.java

@@ -277,7 +277,7 @@ public class FileStore {
      */
     public void readFully(byte[] b, int off, int len) throws SQLException {
         if (SysProperties.CHECK && (len < 0 || len % Constants.FILE_BLOCK_SIZE != 0)) {
-            Message.throwInternalError("unaligned write " + name + " len " + len);
+            Message.throwInternalError("unaligned read " + name + " len " + len);
         }
         checkPowerOff();
         try {