Fix it for real

slib.sh

@@ -481,7 +481,7 @@ set_hostname () {
       if grep "^$address" /etc/hosts >/dev/null; then
         log_debug "Entry for IP $address exists in /etc/hosts."
         log_debug "Updating with new hostname."
-        sed -i "s/^$address\([\s\t]+\).*$/$address $line $shortname/" /etc/hosts
+        sed -i "s/^$address.*/$address $line $shortname/" /etc/hosts
       else
         log_debug "Adding new entry for hostname $line on $address to /etc/hosts."
         printf "%s\t%s\t%s\n" "$address" "$line" "$shortname" >> /etc/hosts