Also suggest short options

src/complete.bash

 #!/bin/bash
 
 __satcmd() {
-    local cur opts
+    local cur opts sopts
     COMPREPLY=()
     cur="${COMP_WORDS[COMP_CWORD]}"
+    sopts="-d -h -v"
     opts="--help --verbose --debug --version --version-semver"
 
     case "$cur" in
+        -*)
+            COMPREPLY=(
+                $(compgen -W "$sopts $opts" -- "${cur}")
+            )
+            ;;
         --*)
             COMPREPLY=(
                 $(compgen -W "$opts" -- "${cur}")