Bug#703792: apt-get source add a space to -a option for dpkg-buildpackage

[YunQiang Su <wzssyqa@gmail.com>]

Package: apt

When cross build with apt-get source -amips -b ${any_package},
it will call dpkg-buildpackage like:

dpkg-buildpakage -a mips -b -uc ${any_package}

While dpkg-buildpackage don't allow a space between a and mips

--
YunQiang Su