Mike Hommey [off-list ref] writes:
And reminds me something ;)
http://kerneltrap.org/mailarchive/git/2007/12/11/488177
Although I admit I try to be less picky about what I am not a
heavy user of, I do not want to be deliberately sloppy by saying
"if ($var)" in Perl when $var is an end-user string (i.e. could
be "0").
Yes, it is unlikely the user mistypes "0" when asked for a
message Id, but it is just a matter of principle...