Fix the postrotate script
Fix the postrotate script

Using service nginx rotate versus kill pid, per a good catch by @louim.

merchantguru/trellis,alan-c/trellis,fullyint/trellis,rpkoller/trellis,mAAdhaTTah/bedrock-ansible,kalenjohnson/trellis,roots/bedrock-ansible,partounian/trellis,mAAdhaTTah/bedrock-ansible,jvandijk/epwp-trellis,louim/bedrock-ansible,ChilliCreative/trellis,newtonne/trellis,Twansparant/trellis-db-sync,jeffstieler/bedrock-ansible,buluma/trellis,cimocimocimo/cimo-wordpress-server,buluma/trellis,buluma/trellis,kalenjohnson/trellis,NicBeltramelli/trellis,proteusthemes/pt-ops,BrandonShutter/trellis,mAAdhaTTah/bedrock-ansible,Twansparant/trellis-db-sync,dailysecret/trellis,cimocimocimo/cimo-wordpress-server,NicBeltramelli/trellis,pressbooks/trellis,erikbelusic/trellis,fullyint/trellis,buluma/trellis,austinpray/bedrock-ansible,cimocimocimo/cimo-wordpress-server,mlaa/trellis,kalenjohnson/trellis,proteusthemes/pt-ops,NicBeltramelli/trellis,jeffstieler/bedrock-ansible,roots/trellis,dboune/trellis,jeffstieler/bedrock-ansible,partounian/trellis,Twansparant/trellis-db-sync,all9lives/trellis,fullyint/trellis,all9lives/trellis,newtonne/trellis,pressbooks/trellis,ckovey/trellis,roots/trellis,cimocimocimo/cimo-wordpress-server,kalenjohnson/trellis,proteusthemes/pt-ops,dailysecret/trellis,jvandijk/epwp-trellis,alan-c/trellis,Twansparant/trellis-db-sync,newtonne/trellis,ckovey/trellis,partounian/trellis,mAAdhaTTah/bedrock-ansible,fullyint/trellis,roots/bedrock-ansible,dboune/trellis,mlaa/trellis,BrandonShutter/trellis,NicBeltramelli/trellis,ChilliCreative/trellis,partounian/trellis