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From: Richard Stallman <rms@gnu.org>
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Subject: Re: Matches for multiline regexps
Date: Thu, 16 Jun 2005 12:24:06 -0400
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    `M-x occur RET 11 C-q C-j 11 RET' finds four matches (lines 1 through 4)
    which seems logical to me.

    `M-x how-many RET 11 C-q C-j 11 RET' (with point at bob) finds two matches.

One function looks for lines that match, while the other finds
matches, so it is natural that they may differ.

It is not a bug, and I don't see why we need to change the
documentation either.