updated for version 7.3.901
Problem:    Outdated comment, ugly condition.
Solution:   Update a few comments, break line.
diff --git a/src/getchar.c b/src/getchar.c
index d3d50e9..ba034bf 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -444,7 +444,7 @@
 	typebuf.tb_off = MAXMAPLEN;
 	typebuf.tb_len = 0;
     }
-    else		    /* remove mapped characters only */
+    else		    /* remove mapped characters at the start only */
     {
 	typebuf.tb_off += typebuf.tb_maplen;
 	typebuf.tb_len -= typebuf.tb_maplen;