[issue687] hg add should report on skipping underlying repo

[AlexRayne]

New submission from AlexRayne <AlexRainPE196 at newmail.ru>:

if invoked hg add found a folder wich is another repository - 
then it skip it silent.
in verbose mode (-v switch) hg should to report about such situation.
see msg3665

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messages: 3821
nosy: AlexRayne
priority: wish
status: unread
title: hg add should report on skipping underlying repo

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Mercurial issue tracker <mercurial-bugs at selenic.com>
<http://www.selenic.com/mercurial/bts/issue687>
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