Updated syntax/cpp.vim

[mattn]

Hi, Bram and all

We vim-jp updated syntax/cpp.vim. Please check and merge this.

Thanks.

https://gist.github.com/mattn/e26d64c8948ddb22a37e28f9bfc68267

[Bram Moolenaar]

I'll include it, thanks.
I'll also update the date in the header.

--
An SQL statement walks into a bar. He approaches two tables
and says, "Mind if I join you?"

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// \\\
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