BUG: Add missing DECREF in Py2 int() cast
BUG: Add missing DECREF in Py2 int() cast

The Long number is downcast to int if possible, so the old version
has to be DECREF'ed.

Thanks to Johannes Barthelmes for bisecting the offending commit.

Closes gh-10474

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