add gnu to cdpath

src/etc/root/dot.cshrc

@@ -3,7 +3,7 @@ set history=1000
 set path=(/sbin /usr/sbin /bin /usr/bin)
 
 # directory stuff: cdpath/cd/back
-set cdpath=(/sys /usr/src/{bin,sbin,usr.{bin,sbin},pgrm,lib,libexec,share,contrib,local,devel,games,old,})
+set cdpath=(/sys /usr/src/{bin,sbin,usr.{bin,sbin},pgrm,lib,libexec,share,contrib,local,devel,games,old,gnu,gnu/{lib,usr.bin,libexec}})
 
 setenv BLOCKSIZE 1k