bug#16985: indent-for-tab-command error messages could mention line numbers

["積丹尼 Dan Jacobson" <jidanni@jidanni.org>]

>>>>> "SM" == Stefan Monnier <monnier@iro.umontreal.ca> writes:
SM> IOW, please tell us in which case you got the above error, so we can
SM> catch it and turn it into a non-error.
>> I recall it was when I was editing a perl program, so try with perl
>> mode... But anyway I think it would be better to catch such errors.

SM> Hmm... catch them and do what?  Such a signal means that's a coding
SM> error somewhere in the indentation code, so hiding the signal is not
SM> a good idea.


SM>         Stefan

OK, this file.pl
{}}
}(
}
triggers the bug. Do C-x h TAB.

Also the message should say "Help report this bug in xxx.el!" else people
will think it is an error in their perl file.