Issue 175: try to fix test_sys_per_cpu_times2 on OSX
Issue 175: try to fix test_sys_per_cpu_times2 on OSX

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