Fix typo in man page.
Fix typo in man page.

diditaxi/beanstalkd,handautsav/beanstalkd,naderman/beanstalkd,qbdsoft/beanstalkd,naderman/beanstalkd,qbdsoft/beanstalkd,pinguo-xudianyang/beanstalkd,yetone/beanstalkd,mickeyouyou/beanstalkd,kr/beanstalkd,bmhatfield/beanstalkd,aidaima/beanstalkd,Qihoo360/beanstalkd-win,amyvmiwei/beanstalkd,justintung/beanstalkd,wfxiang08/beanstalkd,PhillipMwaniki/beanstalkd,aidaima/beanstalkd,lzpfmh/beanstalkd,CompendiumSoftware/beanstalkd,naderman/beanstalkd,kr/beanstalkd,justintung/beanstalkd,Qihoo360/beanstalkd-win,JensRantil/beanstalkd,r3jack/beanstalkd,mickeyouyou/beanstalkd,orangeholic/beanstalkd,diditaxi/beanstalkd,wfxiang08/beanstalkd,ifduyue/beanstalkd,davies/beanstalkd,tdg5/beanstalkd,ifduyue/beanstalkd,bmhatfield/beanstalkd,mobliyishengyuan/beanstalkd,davies/beanstalkd,cgvarela/beanstalkd,wyzssw/beanstalkd,wyzssw/beanstalkd,orangeholic/beanstalkd,pinguo-xudianyang/beanstalkd,lzpfmh/beanstalkd,JensRantil/beanstalkd,handautsav/beanstalkd,PhillipMwaniki/beanstalkd,r3jack/beanstalkd,mobliyishengyuan/beanstalkd,cgvarela/beanstalkd,yetone/beanstalkd,LomoX-Offical/beanstalkd-win,amyvmiwei/beanstalkd,tdg5/beanstalkd,LomoX-Offical/beanstalkd-win,CompendiumSoftware/beanstalkd,potatosalad/beanstalkd,potatosalad/beanstalkd