Add test for setdiff1d on character arrays.
Add test for setdiff1d on character arrays.

BMJHayward/numpy,rgommers/numpy,MichaelAquilina/numpy,MaPePeR/numpy,rhythmsosad/numpy,astrofrog/numpy,mhvk/numpy,brandon-rhodes/numpy,pelson/numpy,endolith/numpy,larsmans/numpy,Anwesh43/numpy,rudimeier/numpy,simongibbons/numpy,grlee77/numpy,leifdenby/numpy,tdsmith/numpy,NextThought/pypy-numpy,KaelChen/numpy,behzadnouri/numpy,mattip/numpy,MSeifert04/numpy,AustereCuriosity/numpy,bmorris3/numpy,pbrod/numpy,dimasad/numpy,skwbc/numpy,ogrisel/numpy,larsmans/numpy,KaelChen/numpy,jankoslavic/numpy,GaZ3ll3/numpy,jorisvandenbossche/numpy,ajdawson/numpy,shoyer/numpy,leifdenby/numpy,embray/numpy,groutr/numpy,charris/numpy,mwiebe/numpy,maniteja123/numpy,stuarteberg/numpy,Dapid/numpy,dimasad/numpy,Linkid/numpy,ChanderG/numpy,ssanderson/numpy,Srisai85/numpy,jankoslavic/numpy,pizzathief/numpy,sigma-random/numpy,endolith/numpy,WarrenWeckesser/numpy,githubmlai/numpy,charris/numpy,rgommers/numpy,BMJHayward/numpy,numpy/numpy-refactor,sinhrks/numpy,anntzer/numpy,brandon-rhodes/numpy,SunghanKim/numpy,ddasilva/numpy,jschueller/numpy,dato-code/numpy,mingwpy/numpy,bmorris3/numpy,has2k1/numpy,pyparallel/numpy,immerrr/numpy,dwf/numpy,pbrod/numpy,stuarteberg/numpy,nguyentu1602/numpy,GrimDerp/numpy,ajdawson/numpy,charris/numpy,ewmoore/numpy,dwillmer/numpy,GaZ3ll3/numpy,matthew-brett/numpy,dch312/numpy,mwiebe/numpy,tdsmith/numpy,mathdd/numpy,endolith/numpy,simongibbons/numpy,tacaswell/numpy,rhythmsosad/numpy,solarjoe/numpy,Dapid/numpy,bertrand-l/numpy,ajdawson/numpy,embray/numpy,leifdenby/numpy,NextThought/pypy-numpy,mortada/numpy,cowlicks/numpy,kirillzhuravlev/numpy,numpy/numpy-refactor,gmcastil/numpy,jorisvandenbossche/numpy,jakirkham/numpy,behzadnouri/numpy,ogrisel/numpy,dimasad/numpy,kirillzhuravlev/numpy,ssanderson/numpy,dato-code/numpy,jakirkham/numpy,mattip/numpy,felipebetancur/numpy,rgommers/numpy,ContinuumIO/numpy,cjermain/numpy,ChristopherHogan/numpy,utke1/numpy,jorisvandenbossche/numpy,BabeNovelty/numpy,numpy/numpy,larsmans/numpy,sonnyhu/numpy,matthew-brett/numpy,has2k1/numpy,pelson/numpy,abalkin/numpy,WillieMaddox/numpy,dwillmer/numpy,immerrr/numpy,ContinuumIO/numpy,NextThought/pypy-numpy,chatcannon/numpy,jonathanunderwood/numpy,Eric89GXL/numpy,sigma-random/numpy,githubmlai/numpy,groutr/numpy,BabeNovelty/numpy,cowlicks/numpy,KaelChen/numpy,njase/numpy,hainm/numpy,WarrenWeckesser/numpy,WarrenWeckesser/numpy,jschueller/numpy,mingwpy/numpy,sinhrks/numpy,rherault-insa/numpy,anntzer/numpy,mindw/numpy,stefanv/numpy,mindw/numpy,skwbc/numpy,pdebuyl/numpy,pbrod/numpy,groutr/numpy,ahaldane/numpy,gmcastil/numpy,endolith/numpy,pelson/numpy,rmcgibbo/numpy,rmcgibbo/numpy,ekalosak/numpy,skymanaditya1/numpy,pdebuyl/numpy,gfyoung/numpy,seberg/numpy,stuarteberg/numpy,KaelChen/numpy,pbrod/numpy,MSeifert04/numpy,matthew-brett/numpy,WillieMaddox/numpy,pdebuyl/numpy,dch312/numpy,njase/numpy,rhythmsosad/numpy,ogrisel/numpy,kiwifb/numpy,ahaldane/numpy,pizzathief/numpy,Srisai85/numpy,bmorris3/numpy,anntzer/numpy,Yusa95/numpy,skymanaditya1/numpy,tdsmith/numpy,tacaswell/numpy,brandon-rhodes/numpy,SiccarPoint/numpy,andsor/numpy,pizzathief/numpy,madphysicist/numpy,Eric89GXL/numpy,abalkin/numpy,hainm/numpy,felipebetancur/numpy,ddasilva/numpy,gfyoung/numpy,stefanv/numpy,astrofrog/numpy,pdebuyl/numpy,ChanderG/numpy,GaZ3ll3/numpy,has2k1/numpy,ahaldane/numpy,yiakwy/numpy,MSeifert04/numpy,sinhrks/numpy,ESSS/numpy,MichaelAquilina/numpy,numpy/numpy,jakirkham/numpy,ContinuumIO/numpy,Srisai85/numpy,mingwpy/numpy,dch312/numpy,SunghanKim/numpy,MSeifert04/numpy,argriffing/numpy,BMJHayward/numpy,pelson/numpy,drasmuss/numpy,pyparallel/numpy,Dapid/numpy,jakirkham/numpy,b-carter/numpy,jankoslavic/numpy,pizzathief/numpy,pizzathief/numpy,astrofrog/numpy,empeeu/numpy,GaZ3ll3/numpy,SunghanKim/numpy,anntzer/numpy,rudimeier/numpy,MichaelAquilina/numpy,madphysicist/numpy,bertrand-l/numpy,bmorris3/numpy,ViralLeadership/numpy,naritta/numpy,maniteja123/numpy,jonathanunderwood/numpy,tynn/numpy,chiffa/numpy,ChristopherHogan/numpy,BabeNovelty/numpy,mhvk/numpy,SiccarPoint/numpy,GrimDerp/numpy,naritta/numpy,mhvk/numpy,empeeu/numpy,trankmichael/numpy,Yusa95/numpy,mindw/numpy,ViralLeadership/numpy,cowlicks/numpy,ssanderson/numpy,WarrenWeckesser/numpy,pelson/numpy,ViralLeadership/numpy,kiwifb/numpy,numpy/numpy-refactor,astrofrog/numpy,nbeaver/numpy,SiccarPoint/numpy,musically-ut/numpy,mhvk/numpy,shoyer/numpy,nbeaver/numpy,shoyer/numpy,rherault-insa/numpy,ogrisel/numpy,rajathkumarmp/numpy,rajathkumarmp/numpy,ChristopherHogan/numpy,ddasilva/numpy,hainm/numpy,ekalosak/numpy,empeeu/numpy,numpy/numpy,dato-code/numpy,Linkid/numpy,musically-ut/numpy,CMartelLML/numpy,nguyentu1602/numpy,CMartelLML/numpy,madphysicist/numpy,skwbc/numpy,BabeNovelty/numpy,ewmoore/numpy,musically-ut/numpy,NextThought/pypy-numpy,Yusa95/numpy,ahaldane/numpy,andsor/numpy,seberg/numpy,shoyer/numpy,grlee77/numpy,chiffa/numpy,jankoslavic/numpy,abalkin/numpy,mathdd/numpy,dwf/numpy,drasmuss/numpy,naritta/numpy,mwiebe/numpy,MaPePeR/numpy,bringingheavendown/numpy,chiffa/numpy,mattip/numpy,andsor/numpy,seberg/numpy,joferkington/numpy,felipebetancur/numpy,tdsmith/numpy,Eric89GXL/numpy,simongibbons/numpy,WillieMaddox/numpy,rudimeier/numpy,njase/numpy,embray/numpy,simongibbons/numpy,GrimDerp/numpy,Anwesh43/numpy,dwillmer/numpy,Anwesh43/numpy,jakirkham/numpy,cjermain/numpy,naritta/numpy,utke1/numpy,stefanv/numpy,AustereCuriosity/numpy,gfyoung/numpy,mortada/numpy,Linkid/numpy,tacaswell/numpy,joferkington/numpy,tynn/numpy,stefanv/numpy,stefanv/numpy,skymanaditya1/numpy,immerrr/numpy,mathdd/numpy,Linkid/numpy,ChanderG/numpy,mhvk/numpy,argriffing/numpy,sigma-random/numpy,AustereCuriosity/numpy,WarrenWeckesser/numpy,seberg/numpy,rudimeier/numpy,larsmans/numpy,astrofrog/numpy,numpy/numpy-refactor,Srisai85/numpy,ESSS/numpy,joferkington/numpy,shoyer/numpy,felipebetancur/numpy,sonnyhu/numpy,ogrisel/numpy,Anwesh43/numpy,simongibbons/numpy,madphysicist/numpy,Eric89GXL/numpy,rajathkumarmp/numpy,kirillzhuravlev/numpy,embray/numpy,tynn/numpy,trankmichael/numpy,b-carter/numpy,dwillmer/numpy,kiwifb/numpy,jschueller/numpy,dwf/numpy,moreati/numpy,nbeaver/numpy,yiakwy/numpy,ekalosak/numpy,ekalosak/numpy,yiakwy/numpy,CMartelLML/numpy,grlee77/numpy,bertrand-l/numpy,ajdawson/numpy,nguyentu1602/numpy,has2k1/numpy,mortada/numpy,matthew-brett/numpy,SiccarPoint/numpy,moreati/numpy,joferkington/numpy,mingwpy/numpy,SunghanKim/numpy,jonathanunderwood/numpy,MichaelAquilina/numpy,sonnyhu/numpy,MaPePeR/numpy,maniteja123/numpy,brandon-rhodes/numpy,madphysicist/numpy,rmcgibbo/numpy,numpy/numpy,dimasad/numpy,gmcastil/numpy,utke1/numpy,dwf/numpy,hainm/numpy,stuarteberg/numpy,dato-code/numpy,nguyentu1602/numpy,drasmuss/numpy,yiakwy/numpy,immerrr/numpy,mathdd/numpy,GrimDerp/numpy,skymanaditya1/numpy,andsor/numpy,cjermain/numpy,matthew-brett/numpy,sigma-random/numpy,b-carter/numpy,mortada/numpy,ewmoore/numpy,rherault-insa/numpy,rhythmsosad/numpy,chatcannon/numpy,MaPePeR/numpy,behzadnouri/numpy,trankmichael/numpy,embray/numpy,sonnyhu/numpy,cjermain/numpy,rajathkumarmp/numpy,mattip/numpy,argriffing/numpy,jschueller/numpy,bringingheavendown/numpy,solarjoe/numpy,grlee77/numpy,CMartelLML/numpy,pbrod/numpy,cowlicks/numpy,dwf/numpy,rgommers/numpy,sinhrks/numpy,bringingheavendown/numpy,ChristopherHogan/numpy,BMJHayward/numpy,mindw/numpy,numpy/numpy-refactor,empeeu/numpy,jorisvandenbossche/numpy,ChanderG/numpy,ESSS/numpy,charris/numpy,ewmoore/numpy,dch312/numpy,chatcannon/numpy,ahaldane/numpy,jorisvandenbossche/numpy,pyparallel/numpy,Yusa95/numpy,ewmoore/numpy,MSeifert04/numpy,githubmlai/numpy,grlee77/numpy,trankmichael/numpy,solarjoe/numpy,githubmlai/numpy,musically-ut/numpy,kirillzhuravlev/numpy,moreati/numpy,rmcgibbo/numpy