[PATCH] fix build error with automake-1.14, dnl comment need start at newline

[Marc Lehmann]

On Sun, Dec 22, 2013 at 08:44:22AM +0800, "Lan Yixun (dlan)" <dennis.yxun at gmail.com> wrote:
> with changes AM_INIT_AUTOMAKE, dnl trucate the end of trailing newline
> thus make next macro append to same line, result in weird error

And as a last comment, this is a bug (or another incompatible change) in
either automake or autoconf - autoconf does not require macros to be on
their own line, and the dnl syntax is documented as well.

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