Improving error messages?

[Thomas Klausner <wiz@NetBSD.org>]

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Hi!

Recently I stumbled over a problem in pfstat(8) where a Bl had no
matching El; the mandoc version at that time wasn't even complaining
about it, just the error code returned was 1.

I've tried to file a proper bug report about this and reproduce the
problem first.

mandoc-1.10.1 is complaining about the man page with the error:

test.1:14:2: scope broken, syntax violated: multi-line scope breaks multi-line of It

I must confess, I wouldn't have a clue how to find the root cause of
this from the description.

groff-1.19.2 complains about the same problem this way:

mdoc warning: A .Bl directive has no matching .El (#14)

Perhaps the error message can be improved?

Cheers,
 Thomas

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.Dd June 30, 2010
.Dt TEST 1
.Os
.Sh NAME
.Nm test
.Nd test page
.Sh DESCRIPTION
.Bl -bullet
.It
first
.It
second
.\".El
.Sh BUGS
The missing .El is not found.