Trivial: Clean up some typos.

Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/src/vnet/ipsec-gre/ipsec_gre_api.c b/src/vnet/ipsec-gre/ipsec_gre_api.c
index 01cc6d7..c29b9b8 100644
--- a/src/vnet/ipsec-gre/ipsec_gre_api.c
+++ b/src/vnet/ipsec-gre/ipsec_gre_api.c
@@ -138,7 +138,7 @@
 /*
  * ipsec_gre_api_hookup
  * Add vpe's API message handlers to the table.
- * vlib has alread mapped shared memory and
+ * vlib has already mapped shared memory and
  * added the client registration handlers.
  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
  */