Documentation: ManagementStyle: fixed typo

Fixed a spelling error (less that you -> less than you)
Signed-off-by: NChristopher L. Simons <christopherleesimons@gmail.com>
Acked-by: NRob Landley <rob@landley.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Documentation/ManagementStyle

@@ -178,7 +178,7 @@ sadly that you are one too, and that while we can all bask in the secure
 knowledge that we're better than the average person (let's face it,
 nobody ever believes that they're average or below-average), we should
 also admit that we're not the sharpest knife around, and there will be
-other people that are less of an idiot that you are. 
+other people that are less of an idiot than you are. 
 
 Some people react badly to smart people.  Others take advantage of them.