CLN: Clean tests for .sort_index, .sort_values and df.drop_duplicates#30651

Merged

jreback merged 6 commits intopandas-dev:masterfrom

charlesdong1991:followup_ignore_index

Jan 4, 2020

Commits on Dec 3, 2018

remove \n from docstring
charlesdong1991
committed

Commits on Jan 19, 2019

fix conflicts
charlesdong1991
committed

Commits on Jul 30, 2019

Merge remote-tracking branch 'upstream/master'
charlesdong1991
committed

Commits on Jan 3, 2020