Added "secs" logvar function
Related to
@@ -34,6 +34,7 @@ These are simple functions called for generating the logvar value:
* ``%(status)`` -> HTTP response status code
* ``%(micros)`` -> response time in microseconds
* ``%(msecs)`` -> response time in milliseconds
+* ``%(secs)`` -> response time in seconds
* ``%(time)`` -> timestamp of the start of the request
* ``%(ctime)`` -> ctime of the start of the request
* ``%(epoch)`` -> the current time in Unix format
