(get_cmdline, cl_refresh): If TERMINAL_DUMB

section is always 0.
 Line is only cleared if !TERMINAL_DUMB.

stage2/char_io.c

@@ -385,7 +385,8 @@ get_cmdline (char *prompt, char *cmdline, int maxlen,
       if (full)
 	{
 	  /* Recompute the section number.  */
-	  if (lpos + plen < CMDLINE_WIDTH)
+	  if ((terminal & TERMINAL_DUMB)
+	      || (lpos + plen < CMDLINE_WIDTH))
 	    section = 0;
 	  else
 	    section = ((lpos + plen - CMDLINE_WIDTH)
@@ -449,6 +450,8 @@ get_cmdline (char *prompt, char *cmdline, int maxlen,
 	  pos++;
 	}
       
+      if (! (terminal & TERMINAL_DUMB))
+	{
          /* Fill up the rest of the line with spaces.  */
          for (; i < start + len; i++)
            {
@@ -491,6 +494,7 @@ get_cmdline (char *prompt, char *cmdline, int maxlen,
            }
 # endif /* SUPPORT_SERIAL */
        }
+    }
 
   /* Initialize the command-line.  */
   void cl_init (void)