mksysinfo: remove incorrect quotes in st_fsid handling for Hurd

Also stop converting st_dev on Hurd; it shouldn't appear, but if it
somehow does we don't want to convert it.

Change-Id: I2ff0859b81cdaeb6f0169f099000972e05444135
Reviewed-on: https://go-review.googlesource.com/c/161961
Reviewed-by: Ian Lance Taylor <iant@golang.org>
1 file changed