I don't know when, but this appears to have been fixed. Ignoring punctuation is a wontfix because of aliases, but the error message is much more clear and less silly now.
Status: NEW → RESOLVED
Last Resolved: 13 years ago
Resolution: --- → FIXED
Target Milestone: --- → Bugzilla 2.20
Error message was fixed in bug 269294.
*** This bug has been marked as a duplicate of 269294 ***
Status: REOPENED → RESOLVED
Last Resolved: 13 years ago → 13 years ago
Resolution: --- → DUPLICATE
Target Milestone: Bugzilla 2.20 → ---
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