[manylinux2014] Allow manylinux2010 build from manylinux2014 branch#979

mayeut merged 1 commit intopypa:manylinux2014pypa/manylinux:manylinux2014from

mayeut:manylinux2014-multistage-build16mayeut/manylinux:manylinux2014-multistage-build16Copy head branch name to clipboard