PATCH: more flexible cd builtin

[Clint Adams <schizo@debian.org>]

If the current directory is renamed, zsh's cd will fail because
it's attempting to change to the full path which no longer exists.
This allows one to cd to a subdirectory successfully.  This is
incomplete; `pwd` will become correct, but $PWD will not.

Index: Src/builtin.c
===================================================================
RCS file: /cvs/zsh/zsh/Src/builtin.c,v
retrieving revision 1.1.1.44
diff -u -r1.1.1.44 builtin.c
--- Src/builtin.c	1999/12/10 21:40:57	1.1.1.44
+++ Src/builtin.c	1999/12/13 21:51:42
@@ -951,6 +951,7 @@
     else
 	unmetafy(buf, &dlen);
 
+    if (lchdir(dest, NULL, hard))	/* Try plain relative first */
     if (lchdir(buf, NULL, hard)) {
 	free(buf);
 	return NULL;