Comment 8 for bug 470037

Reproducible at ubuntu 12.04
It is annoying, I was trying to run (sudo) a program and I couldn't figure where was the directory.

simple example1:
t@ubuntu:~/test$ ls
test test space
t@ubuntu:~/test$ ./test #pressing tab
test/ test space/
t@ubuntu:~/test$ sudo ./test #pressing tab
space test/

OR, example2:
t@ubuntu:~/test$ ls | grep cud
cuda
cuda pdfs
t@ubuntu:~/test$ ./cuda #pressing tab
cuda/ cuda pdfs/
t@ubuntu:~/test$ sudo ./cuda #pressing tab
cuda/ pdfs