Fix typo: BLOG => BLOB

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.6
| Fixed tickets |

Author: ifdattic

cookbook/configuration/pdo_session_storage.rst

@@ -213,7 +213,7 @@ Example SQL Statements
     * A new session lifetime (``sess_lifetime`` by default) integer column
       needs to be added;
     * The data column (``sess_data`` by default) needs to be changed to a
-      BLOG type.
+      BLOB type.
 
     Check the SQL statements below for more details.