parse-args print help only on demand to clutter less the output

I realised that I am used to scroll up in case of errors to see the
first message, i.e. the idea to print the help first and the error in
the end was rather counterintuitive.
Let's take a new approach and print the error first again and ask the
user if the help shall be printed, this way we only show it on demand
and don't clutter the output -- i.e. still see the error first without
losing the ability to see the help quickly

src/utility/parse-args.sh

@@ -74,6 +74,7 @@ if ! [[ -v dir_of_tegonal_scripts ]]; then
 	source "$dir_of_tegonal_scripts/setup.sh" "$dir_of_tegonal_scripts"
 fi
 sourceOnce "$dir_of_tegonal_scripts/utility/array-utils.sh"
+sourceOnce "$dir_of_tegonal_scripts/utility/ask.sh"
 sourceOnce "$dir_of_tegonal_scripts/utility/checks.sh"
 sourceOnce "$dir_of_tegonal_scripts/utility/parse-utils.sh"
 
@@ -186,13 +187,14 @@ function parseArgumentsInternal {
 		done
 
 		if [[ $parseArguments_unknownBehaviour = 'error' ]] && ((parseArguments_expectedName == 0)); then
-			parse_args_printHelp >&2 parseArguments_paramArr "$parseArguments_examples" "$parseArguments_version"
 			if [[ $parseArguments_argName =~ ^- ]] && (($# > 1)); then
 				logError "unknown argument \033[1;36m%s\033[0m (and value %s)" "$parseArguments_argName" "$2"
 			else
 				logError "unknown argument \033[1;36m%s\033[0m" "$parseArguments_argName"
 			fi
-			echo >&2 "consult the output of --help shown further above for valid names"
+			if askYesOrNo "Shall I print the help for you?"; then
+				parse_args_printHelp >&2 parseArguments_paramArr "$parseArguments_examples" "$parseArguments_version"
+			fi
 			exit 9
 		fi
 		shift 1 || traceAndDie "could not shift by 1"