Not a -M option

[Zefram <A.Main@xxxxxxxxxxxxxxxxx>]

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This patch fixes the following problem:

~/usr% set --
~/usr% setopt autocd
~/usr% $@
~%

(The "$@" command should get a "no command" error.)

 -zefram

      *** 1.1	1995/12/23 17:39:23
      --- exec.c	1996/01/10 08:03:17
      ***************
      *** 1292,1298 ****
        	/* If no command found yet, see if it is *
        	 * a directory we should AUTOCD to.      */
        	if (!hn && isset(AUTOCD) && isset(SHINSTDIN) && empty(cmd->redir)
      ! 	    && !nextnode(firstnode(args)) && (s = cancd(peekfirst(args)))) {
        	    peekfirst(args) = (void *) s;
        	    pushnode(args, dupstring("cd"));
        	    if ((hn = builtintab->getnode(builtintab, "cd")))
      --- 1292,1299 ----
        	/* If no command found yet, see if it is *
        	 * a directory we should AUTOCD to.      */
        	if (!hn && isset(AUTOCD) && isset(SHINSTDIN) && empty(cmd->redir)
      ! 	    && !nextnode(firstnode(args))
      ! 	    && (s = cancd(peekfirst(args))) && *s) {
        	    peekfirst(args) = (void *) s;
        	    pushnode(args, dupstring("cd"));
        	    if ((hn = builtintab->getnode(builtintab, "cd")))

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