DOC: fix broken genfromtxt examples in user guide.  Closes gh-7662.
DOC: fix broken genfromtxt examples in user guide.  Closes gh-7662.

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tynn/numpy,shoyer/numpy,utke1/numpy,numpy/numpy,SiccarPoint/numpy,grlee77/numpy,solarjoe/numpy,ContinuumIO/numpy,grlee77/numpy,abalkin/numpy,SiccarPoint/numpy,bringingheavendown/numpy,abalkin/numpy,WarrenWeckesser/numpy,anntzer/numpy,bertrand-l/numpy,kiwifb/numpy,AustereCuriosity/numpy,ahaldane/numpy,ahaldane/numpy,dwillmer/numpy,ssanderson/numpy,dwillmer/numpy,pdebuyl/numpy,ddasilva/numpy,joferkington/numpy,bertrand-l/numpy,stuarteberg/numpy,solarjoe/numpy,jakirkham/numpy,jorisvandenbossche/numpy,b-carter/numpy,gfyoung/numpy,grlee77/numpy,tynn/numpy,mattip/numpy,shoyer/numpy,endolith/numpy,MSeifert04/numpy,pizzathief/numpy,pbrod/numpy,MSeifert04/numpy,bringingheavendown/numpy,pbrod/numpy,mattip/numpy,Eric89GXL/numpy,jakirkham/numpy,gmcastil/numpy,jorisvandenbossche/numpy,anntzer/numpy,charris/numpy,skwbc/numpy,chatcannon/numpy,endolith/numpy,maniteja123/numpy,joferkington/numpy,abalkin/numpy,behzadnouri/numpy,behzadnouri/numpy,rgommers/numpy,skwbc/numpy,mhvk/numpy,utke1/numpy,gfyoung/numpy,simongibbons/numpy,stuarteberg/numpy,seberg/numpy,SiccarPoint/numpy,jakirkham/numpy,numpy/numpy,endolith/numpy,madphysicist/numpy,gmcastil/numpy,ContinuumIO/numpy,jakirkham/numpy,jorisvandenbossche/numpy,gfyoung/numpy,njase/numpy,utke1/numpy,behzadnouri/numpy,mattip/numpy,grlee77/numpy,dwillmer/numpy,ssanderson/numpy,WarrenWeckesser/numpy,pizzathief/numpy,maniteja123/numpy,gmcastil/numpy,madphysicist/numpy,pizzathief/numpy,WarrenWeckesser/numpy,MSeifert04/numpy,simongibbons/numpy,bringingheavendown/numpy,Eric89GXL/numpy,anntzer/numpy,dwillmer/numpy,WarrenWeckesser/numpy,charris/numpy,mhvk/numpy,shoyer/numpy,madphysicist/numpy,pizzathief/numpy,rgommers/numpy,jorisvandenbossche/numpy,rgommers/numpy,pbrod/numpy,pbrod/numpy,numpy/numpy,njase/numpy,mhvk/numpy,seberg/numpy,pbrod/numpy,AustereCuriosity/numpy,jorisvandenbossche/numpy,seberg/numpy,ahaldane/numpy,njase/numpy,stuarteberg/numpy,Eric89GXL/numpy,mhvk/numpy,madphysicist/numpy,simongibbons/numpy,ContinuumIO/numpy,charris/numpy,mhvk/numpy,ddasilva/numpy,chatcannon/numpy,b-carter/numpy,seberg/numpy,AustereCuriosity/numpy,b-carter/numpy,numpy/numpy,ahaldane/numpy,shoyer/numpy,stuarteberg/numpy,ssanderson/numpy,SiccarPoint/numpy,madphysicist/numpy,bertrand-l/numpy,tacaswell/numpy,maniteja123/numpy,joferkington/numpy,simongibbons/numpy,jakirkham/numpy,tynn/numpy,MSeifert04/numpy,kiwifb/numpy,ahaldane/numpy,pdebuyl/numpy,simongibbons/numpy,joferkington/numpy,anntzer/numpy,WarrenWeckesser/numpy,mattip/numpy,skwbc/numpy,pdebuyl/numpy,tacaswell/numpy,grlee77/numpy,kiwifb/numpy,charris/numpy,ddasilva/numpy,Eric89GXL/numpy,chatcannon/numpy,MSeifert04/numpy,pizzathief/numpy,endolith/numpy,tacaswell/numpy,rgommers/numpy,pdebuyl/numpy,shoyer/numpy,solarjoe/numpy