Trivial: Clean up some typos.

Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h
index 07944a1..f9ceae5 100644
--- a/src/vnet/ipsec/ipsec.h
+++ b/src/vnet/ipsec/ipsec.h
@@ -286,13 +286,13 @@
   uword *ipsec_if_pool_index_by_key;
   uword *ipsec_if_real_dev_by_show_dev;
 
-  /* node indeces */
+  /* node indices */
   u32 error_drop_node_index;
   u32 esp_encrypt_node_index;
   u32 esp_decrypt_node_index;
   u32 ah_encrypt_node_index;
   u32 ah_decrypt_node_index;
-  /* next node indeces */
+  /* next node indices */
   u32 esp_encrypt_next_index;
   u32 esp_decrypt_next_index;
   u32 ah_encrypt_next_index;