fix s_dirty
fix s_dirty

iamahuman/angr,schieb/angr,chubbymaggie/simuvex,axt/angr,zhuyue1314/simuvex,iamahuman/angr,angr/angr,chubbymaggie/angr,angr/angr,f-prettyland/angr,chubbymaggie/angr,f-prettyland/angr,chubbymaggie/simuvex,schieb/angr,tyb0807/angr,f-prettyland/angr,tyb0807/angr,angr/angr,tyb0807/angr,axt/angr,angr/simuvex,iamahuman/angr,chubbymaggie/angr,chubbymaggie/simuvex,schieb/angr,axt/angr