Bug#795963: dune-istl: FTBFS: bcrsimplicitbuild.cc:269:51: error: no match for 'operator<<'

[Ansgar Burchardt]

Control: tag -1 upstream fixed-upstream
Control: fixed -1 2.4~20150506gee6e5f6-1

> dune-istl fails to build from source on unstable/amd64:
>
>   [..]
>
>   bcrsimplicitbuild.cc: In function 'int testEntryConsistency()':
>   bcrsimplicitbuild.cc:269:51: error: no match for 'operator<<' (operand
>   types are 'std::basic_ostream<char>' and 'std::ostream {aka
>   std::basic_ostream<char>}')
>        std::cerr<<"ERROR: Entries are not consistent"<<std::cerr;

This was fixed upstream:

commit fa6d183dec61f2f8bcfb9484b71a167976334e96
Author: Christoph Grüninger <gruenich at dune-project.org>
Date:   Sat Nov 29 07:59:44 2014 +0100

    Fix wrong std::cerr at end of output.

    It should be std::endl.
    Courtesy of GCC 5-svn, it refuses to compile these.

Ansgar