CLEANUP: assorted typo fixes in the code and comments

This is 11th iteration of typo fixes
diff --git a/src/peers.c b/src/peers.c
index 47582e4..fcea37e 100644
--- a/src/peers.c
+++ b/src/peers.c
@@ -2141,7 +2141,7 @@
 
 	/* if current peer is local */
 	if (peer->local) {
-		/* if current host need resyncfrom local and no process assined  */
+		/* if current host need resyncfrom local and no process assigned  */
 		if ((peers->flags & PEERS_RESYNC_STATEMASK) == PEERS_RESYNC_FROMLOCAL &&
 		    !(peers->flags & PEERS_F_RESYNC_ASSIGN)) {
 			/* assign local peer for a lesson, consider lesson already requested */
@@ -2195,7 +2195,7 @@
 }
 
 /*
- * IO Handler to handle message exchance with a peer
+ * IO Handler to handle message exchange with a peer
  */
 static void peer_io_handler(struct appctx *appctx)
 {