Trivial: Clean up some typos.

Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/src/vnet/util/throttle.h b/src/vnet/util/throttle.h
index 0c518d3..97ebb25 100644
--- a/src/vnet/util/throttle.h
+++ b/src/vnet/util/throttle.h
@@ -21,7 +21,7 @@
 /**
  * @brief A throttle
  *  Used in the data plane to decide if a given hash should be throttled,
- *  i.e. that the hash has been seen alreay 'recently'. Recent is the time
+ *  i.e. that the hash has been seen already 'recently'. Recent is the time
  *  given in the throttle's initialisation.
  */
 typedef struct throttle_t_