Minor rewording

Author: javiereguiluz

cookbook/logging/monolog.rst

@@ -234,7 +234,7 @@ only for a specific handler.
     Beware that log file sizes can grow very rapidly, leading to disk space exhaustion.
     This is specially true in the ``dev`` environment, where a simple request can
     generate hundreds of log lines. Consider using tools like the ``logrotate``
-    Linux command to contain log files before they become a problem.
+    Linux command to rotate log files before they become a problem.
 
 A processor is simply a callable receiving the record as its first argument.
 Processors are configured using the ``monolog.processor`` DIC tag. See the