upgpkg: mpfr 3.1.2.p8-1

upstream patch level bump

git-svn-id: file:///srv/repos/svn-packages/svn@213565 eb2447ed-0c53-47e4-bac8-5bc4a241df78
archrelease: copy trunk to testing-i686, testing-x86_64

git-svn-id: file:///srv/repos/svn-packages/svn@213566 eb2447ed-0c53-47e4-bac8-5bc4a241df78