Documentation: lzo: fix spelling mistakes

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/lzo.txt

@@ -69,9 +69,9 @@ Description
 
   IMPORTANT NOTE : in the code some length checks are missing because certain
   instructions are called under the assumption that a certain number of bytes
-  follow because it has already been garanteed before parsing the instructions.
+  follow because it has already been guaranteed before parsing the instructions.
   They just have to "refill" this credit if they consume extra bytes. This is
-  an implementation design choice independant on the algorithm or encoding.
+  an implementation design choice independent on the algorithm or encoding.
 
 Byte sequences