Deduplicated copy/pasted pid-file code into write_pid_file and remove_pid_file in command_line.cc.
Deduplicated copy/pasted pid-file code into write_pid_file and remove_pid_file in command_line.cc.

yakovenkodenis/rethinkdb,wujf/rethinkdb,catroot/rethinkdb,ajose01/rethinkdb,yaolinz/rethinkdb,nviennot/rethinkdb,KSanthanam/rethinkdb,ajose01/rethinkdb,JackieXie168/rethinkdb,wujf/rethinkdb,pap/rethinkdb,Wilbeibi/rethinkdb,niieani/rethinkdb,niieani/rethinkdb,niieani/rethinkdb,victorbriz/rethinkdb,Qinusty/rethinkdb,JackieXie168/rethinkdb,captainpete/rethinkdb,mquandalle/rethinkdb,victorbriz/rethinkdb,KSanthanam/rethinkdb,wujf/rethinkdb,KSanthanam/rethinkdb,sbusso/rethinkdb,lenstr/rethinkdb,catroot/rethinkdb,ayumilong/rethinkdb,mquandalle/rethinkdb,losywee/rethinkdb,4talesa/rethinkdb,sbusso/rethinkdb,nviennot/rethinkdb,Wilbeibi/rethinkdb,4talesa/rethinkdb,mquandalle/rethinkdb,ayumilong/rethinkdb,matthaywardwebdesign/rethinkdb,dparnell/rethinkdb,pap/rethinkdb,dparnell/rethinkdb,Qinusty/rethinkdb,wojons/rethinkdb,eliangidoni/rethinkdb,sebadiaz/rethinkdb,gdi2290/rethinkdb,sontek/rethinkdb,wkennington/rethinkdb,mcanthony/rethinkdb,marshall007/rethinkdb,sontek/rethinkdb,ajose01/rethinkdb,dparnell/rethinkdb,wujf/rethinkdb,wojons/rethinkdb,spblightadv/rethinkdb,nviennot/rethinkdb,catroot/rethinkdb,yaolinz/rethinkdb,ajose01/rethinkdb,losywee/rethinkdb,spblightadv/rethinkdb,eliangidoni/rethinkdb,sebadiaz/rethinkdb,grandquista/rethinkdb,JackieXie168/rethinkdb,gdi2290/rethinkdb,mbroadst/rethinkdb,gdi2290/rethinkdb,rrampage/rethinkdb,AtnNn/rethinkdb,ayumilong/rethinkdb,jesseditson/rethinkdb,rrampage/rethinkdb,nviennot/rethinkdb,wujf/rethinkdb,jesseditson/rethinkdb,greyhwndz/rethinkdb,bpradipt/rethinkdb,tempbottle/rethinkdb,eliangidoni/rethinkdb,marshall007/rethinkdb,niieani/rethinkdb,lenstr/rethinkdb,RubenKelevra/rethinkdb,matthaywardwebdesign/rethinkdb,wkennington/rethinkdb,matthaywardwebdesign/rethinkdb,pap/rethinkdb,matthaywardwebdesign/rethinkdb,mbroadst/rethinkdb,urandu/rethinkdb,niieani/rethinkdb,gavioto/rethinkdb,mbroadst/rethinkdb,ayumilong/rethinkdb,Wilbeibi/rethinkdb,wojons/rethinkdb,losywee/rethinkdb,sbusso/rethinkdb,yakovenkodenis/rethinkdb,sebadiaz/rethinkdb,elkingtonmcb/rethinkdb,AntouanK/rethinkdb,nviennot/rethinkdb,jmptrader/rethinkdb,marshall007/rethinkdb,grandquista/rethinkdb,grandquista/rethinkdb,victorbriz/rethinkdb,KSanthanam/rethinkdb,matthaywardwebdesign/rethinkdb,marshall007/rethinkdb,scripni/rethinkdb,bpradipt/rethinkdb,mcanthony/rethinkdb,captainpete/rethinkdb,Qinusty/rethinkdb,rrampage/rethinkdb,sebadiaz/rethinkdb,gavioto/rethinkdb,sebadiaz/rethinkdb,scripni/rethinkdb,rrampage/rethinkdb,yaolinz/rethinkdb,spblightadv/rethinkdb,4talesa/rethinkdb,gdi2290/rethinkdb,mcanthony/rethinkdb,wojons/rethinkdb,yakovenkodenis/rethinkdb,scripni/rethinkdb,dparnell/rethinkdb,RubenKelevra/rethinkdb,mbroadst/rethinkdb,tempbottle/rethinkdb,greyhwndz/rethinkdb,gavioto/rethinkdb,yakovenkodenis/rethinkdb,Wilbeibi/rethinkdb,elkingtonmcb/rethinkdb,sontek/rethinkdb,wkennington/rethinkdb,elkingtonmcb/rethinkdb,gavioto/rethinkdb,4talesa/rethinkdb,jesseditson/rethinkdb,RubenKelevra/rethinkdb,4talesa/rethinkdb,ayumilong/rethinkdb,ajose01/rethinkdb,scripni/rethinkdb,wojons/rethinkdb,greyhwndz/rethinkdb,AtnNn/rethinkdb,scripni/rethinkdb,4talesa/rethinkdb,alash3al/rethinkdb,lenstr/rethinkdb,losywee/rethinkdb,bchavez/rethinkdb,robertjpayne/rethinkdb,jesseditson/rethinkdb,urandu/rethinkdb,grandquista/rethinkdb,mquandalle/rethinkdb,victorbriz/rethinkdb,eliangidoni/rethinkdb,tempbottle/rethinkdb,losywee/rethinkdb,catroot/rethinkdb,wkennington/rethinkdb,JackieXie168/rethinkdb,elkingtonmcb/rethinkdb,robertjpayne/rethinkdb,wojons/rethinkdb,spblightadv/rethinkdb,sbusso/rethinkdb,jesseditson/rethinkdb,AtnNn/rethinkdb,tempbottle/rethinkdb,sebadiaz/rethinkdb,urandu/rethinkdb,grandquista/rethinkdb,mbroadst/rethinkdb,RubenKelevra/rethinkdb,alash3al/rethinkdb,mcanthony/rethinkdb,eliangidoni/rethinkdb,urandu/rethinkdb,tempbottle/rethinkdb,wkennington/rethinkdb,KSanthanam/rethinkdb,losywee/rethinkdb,catroot/rethinkdb,RubenKelevra/rethinkdb,mbroadst/rethinkdb,jmptrader/rethinkdb,marshall007/rethinkdb,yakovenkodenis/rethinkdb,catroot/rethinkdb,matthaywardwebdesign/rethinkdb,nviennot/rethinkdb,rrampage/rethinkdb,JackieXie168/rethinkdb,sbusso/rethinkdb,greyhwndz/rethinkdb,marshall007/rethinkdb,bchavez/rethinkdb,matthaywardwebdesign/rethinkdb,bchavez/rethinkdb,sebadiaz/rethinkdb,jmptrader/rethinkdb,jmptrader/rethinkdb,gavioto/rethinkdb,tempbottle/rethinkdb,robertjpayne/rethinkdb,AtnNn/rethinkdb,victorbriz/rethinkdb,ayumilong/rethinkdb,pap/rethinkdb,catroot/rethinkdb,niieani/rethinkdb,dparnell/rethinkdb,lenstr/rethinkdb,urandu/rethinkdb,lenstr/rethinkdb,ayumilong/rethinkdb,bchavez/rethinkdb,pap/rethinkdb,jesseditson/rethinkdb,yaolinz/rethinkdb,eliangidoni/rethinkdb,dparnell/rethinkdb,gavioto/rethinkdb,JackieXie168/rethinkdb,elkingtonmcb/rethinkdb,dparnell/rethinkdb,Qinusty/rethinkdb,pap/rethinkdb,AntouanK/rethinkdb,captainpete/rethinkdb,bchavez/rethinkdb,victorbriz/rethinkdb,captainpete/rethinkdb,KSanthanam/rethinkdb,RubenKelevra/rethinkdb,ajose01/rethinkdb,catroot/rethinkdb,captainpete/rethinkdb,Wilbeibi/rethinkdb,AtnNn/rethinkdb,scripni/rethinkdb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