DOC: Correct error in description of ndarray.base
DOC: Correct error in description of ndarray.base

Found in subsection of Subclassing ndarray in python: Extra gotchas - custom __del__ methods and ndarray.base
madphysicist/numpy,pbrod/numpy,anntzer/numpy,pdebuyl/numpy,jakirkham/numpy,rgommers/numpy,rgommers/numpy,seberg/numpy,seberg/numpy,mattip/numpy,endolith/numpy,jakirkham/numpy,mhvk/numpy,anntzer/numpy,pdebuyl/numpy,madphysicist/numpy,madphysicist/numpy,madphysicist/numpy,mattip/numpy,charris/numpy,endolith/numpy,pbrod/numpy,pbrod/numpy,pbrod/numpy,pbrod/numpy,anntzer/numpy,grlee77/numpy,pdebuyl/numpy,mhvk/numpy,pdebuyl/numpy,mattip/numpy,mhvk/numpy,charris/numpy,simongibbons/numpy,charris/numpy,simongibbons/numpy,seberg/numpy,mhvk/numpy,simongibbons/numpy,grlee77/numpy,numpy/numpy,endolith/numpy,jakirkham/numpy,seberg/numpy,grlee77/numpy,charris/numpy,rgommers/numpy,grlee77/numpy,jakirkham/numpy,numpy/numpy,grlee77/numpy,anntzer/numpy,rgommers/numpy,jakirkham/numpy,numpy/numpy,mattip/numpy,simongibbons/numpy,numpy/numpy,endolith/numpy,simongibbons/numpy,mhvk/numpy,madphysicist/numpy