fix param hostname

files/os/gmo-cfg.sh

@@ -34,7 +34,7 @@ alias sudo='sudo --preserve-env=PATH env' # https://www.petefreitag.com/blog/env
 if ! is_scp; then
     if [[ "$USER" == "gilles" || "$USER" == "root" ]]; then
         host_fqdn=$(hostname)
-        host_shot=$(hostname s)
+        host_shot=$(hostname -s)
         ip=$(hostname -I)
         dist=$(cat /etc/redhat-release)
         kern=$(uname -r)