Fix .PHONY target typo in Makefile
Fix .PHONY target typo in Makefile

Minor typo fix.
PattyW/raft_govec,sean-/raft,hashicorp/raft,dgnorton/raft,wantonsolutions/raft,jmptrader/raft-1,otoolep/raft,hashicorp/raft,tempbottle/raft-2,quantiply-fork/raft