patch 9.0.1329: completion of map includes simplified ones

Problem:    Completion of map includes simplified ones.
Solution:   Do not complete simplified mappings. (closes #12013)
diff --git a/src/map.c b/src/map.c
index 9be67cd..9a6cdb1 100644
--- a/src/map.c
+++ b/src/map.c
@@ -180,7 +180,7 @@
     len = msg_outtrans_special(mp->m_keys, TRUE, 0);
     do
     {
-	msg_putchar(' ');		// padd with blanks
+	msg_putchar(' ');		// pad with blanks
 	++len;
     } while (len < 12);
 
@@ -1445,7 +1445,7 @@
 	    mp = maphash[hash];
 	for (; mp; mp = mp->m_next)
 	{
-	    if (!(mp->m_mode & expand_mapmodes))
+	    if (mp->m_simplified || !(mp->m_mode & expand_mapmodes))
 		continue;
 
 	    p = translate_mapping(mp->m_keys);