v3.16-rc4 messes up make kernelrelease with additional output

From: Russell King - ARM Linux
Date: Wed Jul 09 2014 - 09:00:10 EST

3.16-rc3 and all previous versions:

$ make ARCH=arm CROSS_COMPILE=arm-linux- O=/tmp/build/ kernelrelease


$ make ARCH=arm CROSS_COMPILE=arm-linux- O=/tmp/build/ kernelrelease
make[1]: Entering directory `/tmp/build'

There are tools which expect kernelrelease to only produce a single
line. I believe c2e28dc975e (kbuild: Print the name of the build
directory) is probably responsible as this line appears on stdout.

This screws up scripts which do:

open FH, "$build_cmd kernelrelease $O |" or die $!;
my $kernelrelease = <FH>;
close FH;


version=$(make O=$o kernelrelease)

FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
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