print: remove more Token.String() uses
print: remove more Token.String() uses

name      old time/op    new time/op    delta
Fprint-4    10.5µs ± 1%    10.4µs ± 2%  -1.68%          (p=0.030 n=5+6)

mvdan/sh,mvdan/sh,mvdan/sh,mvdan/sh