REF: put concatenate_block_managers in internals.concat#33231

Merged

jreback merged 2 commits intopandas-dev:masterfrom

jbrockmendel:ref-concat

Apr 6, 2020

Commits on Apr 2, 2020

REF: put concatenate_block_managers in internals.concat
jbrockmendel
committed

Commits on Apr 4, 2020

Merge branch 'master' of https://github.com/pandas-dev/pandas into ref-concat
jbrockmendel
committed