MAINT: Use keepdims in favor of re-inserting dimensions
MAINT: Use keepdims in favor of re-inserting dimensions

This is safe, because the arguments are always base-class ndarrays, so `keepdims` is guaranteed to be supported

simongibbons/numpy,WarrenWeckesser/numpy,numpy/numpy,rgommers/numpy,abalkin/numpy,MSeifert04/numpy,jakirkham/numpy,jorisvandenbossche/numpy,pizzathief/numpy,madphysicist/numpy,pdebuyl/numpy,WarrenWeckesser/numpy,rgommers/numpy,gfyoung/numpy,MSeifert04/numpy,pizzathief/numpy,MSeifert04/numpy,endolith/numpy,shoyer/numpy,grlee77/numpy,pdebuyl/numpy,jorisvandenbossche/numpy,charris/numpy,mhvk/numpy,madphysicist/numpy,gfyoung/numpy,rgommers/numpy,madphysicist/numpy,anntzer/numpy,shoyer/numpy,jorisvandenbossche/numpy,madphysicist/numpy,mattip/numpy,seberg/numpy,jakirkham/numpy,Eric89GXL/numpy,simongibbons/numpy,jorisvandenbossche/numpy,seberg/numpy,WarrenWeckesser/numpy,grlee77/numpy,simongibbons/numpy,WarrenWeckesser/numpy,Eric89GXL/numpy,mattip/numpy,mhvk/numpy,endolith/numpy,numpy/numpy,mhvk/numpy,jakirkham/numpy,anntzer/numpy,grlee77/numpy,pbrod/numpy,numpy/numpy,seberg/numpy,charris/numpy,endolith/numpy,simongibbons/numpy,anntzer/numpy,mattip/numpy,rgommers/numpy,abalkin/numpy,mhvk/numpy,shoyer/numpy,seberg/numpy,ahaldane/numpy,anntzer/numpy,abalkin/numpy,pizzathief/numpy,numpy/numpy,WarrenWeckesser/numpy,charris/numpy,MSeifert04/numpy,mattip/numpy,jorisvandenbossche/numpy,MSeifert04/numpy,pbrod/numpy,simongibbons/numpy,pdebuyl/numpy,jakirkham/numpy,ahaldane/numpy,grlee77/numpy,shoyer/numpy,madphysicist/numpy,ahaldane/numpy,pizzathief/numpy,pbrod/numpy,ahaldane/numpy,pizzathief/numpy,grlee77/numpy,gfyoung/numpy,shoyer/numpy,pdebuyl/numpy,Eric89GXL/numpy,mhvk/numpy,jakirkham/numpy,Eric89GXL/numpy,pbrod/numpy,ahaldane/numpy,endolith/numpy,charris/numpy,pbrod/numpy