raspi-config host name handling inconsistent

[tobias]

in raspi-config entering a host name with spaces (e.g. "test 123") results in an insconsistent entry in /etc/hostname and /etc/hosts.

/etc/hostname: "test123"
/etc/hosts: "127.0.0.1 test 123"

this results in an error message when using "sudo" that the host name is unknown. changing the line in /etc/hosts into "127.0.0.1 test123" resolves that error message.

solution: remove spaces in newly entered hostname not only for /etc/hostname entry but also for /etc/hosts entry.

tobias

[tobias (tgd1975)]

Linux raspberrypi 4.9.41+ #1023 Tue Aug 8 15:47:12 BST 2017 armv6l GNU/Linux