Added comments to wmi_underscore method
Added comments to wmi_underscore method

dreamnite/ohai,davide125/ohai,chef/ohai,bougyman/ohai,sh9189/ohai,thommay/ohai,btm/ohai,cmluciano/ohai,nathwill/ohai,MSOpenTech/ohai,mattray/ohai,jaymzh/ohai,adamleff/ohai,bougyman/ohai,glennmatthews/ohai,jbfavre/ohai,juliandunn/ohai,Juniper/ohai,johnbellone/ohai,Fodoj/ohai,joyent/ohai,johnbellone/ohai,MSOpenTech/ohai,zshuo/ohai,criteo-forks/ohai,375gnu/ohai,sh9189/ohai,375gnu/ohai,chef/ohai,btm/ohai,mattray/ohai,Fodoj/ohai,jaymzh/ohai,nathwill/ohai,davide125/ohai,dreamnite/ohai,tas50/ohai-1,phreakocious/ohai,numericillustration/ohai,numericillustration/ohai,shtzr840329/ohai,n-marton/ohai,http-418/ohai,acaiafa/ohai,tas50/ohai-1,n-marton/ohai,zshuo/ohai,ktheory/ohai,shtzr840329/ohai,jbfavre/ohai,adamleff/ohai,acaiafa/ohai,glennmatthews/ohai,zuazo-forks/ohai,http-418/ohai,cmluciano/ohai,phreakocious/ohai,higanworks/ohai,criteo-forks/ohai,jseely/ohai,jseely/ohai,Juniper/ohai,higanworks/ohai,broadinstitute/ohai,broadinstitute/ohai,juliandunn/ohai