improved completion of subcommands in the subcommands directory

Signed-off-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>

bash-completion/remote-forward-credentials

@@ -15,7 +15,7 @@ _remote_forward_credentials()
 		
 		#read names from the subcommands file
 		local names="$( command grep -E -v '^[[:space:]]*(#.*)?$' "${subcommands_file}" 2>/dev/null  |  command cut -d $'\t' -f 1
-                                { PATH="${subcommands_directory}" compgen -c; compgen -abk -A function; }  |  sort  |  uniq -u
+                                PATH="${subcommands_directory}" compgen -c  |  grep -F -x -v "$( compgen -abk -A function )"
 		            )"
 		
 		COMPREPLY=(  $( compgen -W "${names}" -- "${cur}" )  )