fix: correct grep of CLI options using quantifiers and extended regex mode

test_complete.sh

@@ -4,7 +4,7 @@ _validate_workflow_completion() {
     COMPREPLY=()
     cur="${COMP_WORDS[COMP_CWORD]}"
     prev="${COMP_WORDS[COMP_CWORD-1]}"
-    opts=$(cat $SELF | grep "^#hh\s-., --[a-z]" | sed -e "s/^#hh.*\(-.\), \(--[a-z-]*\).*/\1 \2/g")
+    opts=$(grep -rE "^#hh\s+-., --[a-z]+" "${SELF}" | sed -e "s/^#hh.*\(-.\), \(--[a-z-]*\).*/\1 \2/g")
     2>&1 echo "OPTS:$opts" 
     case "$prev" in
         --pipe)