Fix build error -- llvm streams don't like std formatting
Fix build error -- llvm streams don't like std formatting

alessandrogario/mcsema,alessandrogario/mcsema,alessandrogario/mcsema,chubbymaggie/mcsema,chubbymaggie/mcsema,jcranmer/mcsema,jcranmer/mcsema,trailofbits/mcsema,chubbymaggie/mcsema,jcranmer/mcsema,jcranmer/mcsema,trailofbits/mcsema,trailofbits/mcsema,trailofbits/mcsema,alessandrogario/mcsema,chubbymaggie/mcsema