DOC: add more info to failure message
DOC: add more info to failure message

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