make test_username use os.getlogin()
make test_username use os.getlogin()

djhaskin987/psutil,google-code-export/psutil,creativewild/psutil,AlanZatarain/psutil,zhengzheng/psutil,chjwang/psutil,chjwang/psutil,huson2012/psutil,djhaskin987/psutil,vmolsa/psutil,djhaskin987/psutil,kiranvizru/psutil,tigerneil/psutil,AlanZatarain/psutil,google-code-export/psutil,skyshe/psutil,tigerneil/psutil,end18/psutil,nmani1905/psutil,skyshe/psutil,vmolsa/psutil,stupidcache/psutil,vmolsa/psutil,end18/psutil,zhengzheng/psutil,google-code-export/psutil,Alwnikrotikz/psutil,skyshe/psutil,anfedorov/psutil,kiranvizru/psutil,stupidcache/psutil,jucapj/psutil,marmolu/psutil,end18/psutil,shiva21/psutil,tigerneil/psutil,creativewild/psutil,jucapj/psutil,nmani1905/psutil,end18/psutil,peter-hst/psutil,vmolsa/psutil,peter-hst/psutil,marmolu/psutil,stupidcache/psutil,google-code-export/psutil,tigerneil/psutil,creativewild/psutil,huson2012/psutil,anfedorov/psutil,shiva21/psutil,skyshe/psutil,djhaskin987/psutil,PFZheng/psutil,huson2012/psutil,kiranvizru/psutil,PFZheng/psutil,Alwnikrotikz/psutil,kiranvizru/psutil