Two more typos to cancell.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@278934 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -5018,10 +5018,10 @@ static int dahdi_setoption(struct ast_channel *chan, int option, void *data, int
 	case AST_OPTION_ECHOCAN:
 		cp = (char *) data;
 		if (*cp) {
-			ast_debug(1, "Enabling echo cancelation on %s\n", chan->name);
+			ast_debug(1, "Enabling echo cancellation on %s\n", chan->name);
 			dahdi_enable_ec(p);
 		} else {
-			ast_debug(1, "Disabling echo cancelation on %s\n", chan->name);
+			ast_debug(1, "Disabling echo cancellation on %s\n", chan->name);
 			dahdi_disable_ec(p);
 		}
 		break;