[Bug 449893] [NEW] Values returned by colordiff and diff differ

[optim]

Public bug reported:

Binary package hint: colordiff

Colordiff returns success (0) even when files differ.

1) Ubuntu Hardy.
2) Tried more versions. I found the bug in 1.0.6-2 (Hardy) and 1.0.7-2 (Intrepid and Jaunty). 1.0.9-1 (Karmic) behaves correctly.
3) Correct behaviour in 1.0.9-1
$ echo a > a; echo b > b;
$ diff -q a b; echo "$?"; colordiff -q a b; echo "$?"
Files a and b differ
1
Files a and b differ
1
4) Behaviour in 1.0.6-2 and 1.0.7-2
$ echo a > a; echo b > b;
$ diff -q a b; echo "$?"; colordiff -q a b; echo "$?"
Files a and b differ
1
Files a and b differ
0

** Affects: colordiff (Ubuntu)
     Importance: Undecided
         Status: New

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Values returned by colordiff and diff differ
https://bugs.launchpad.net/bugs/449893
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