Add hint for solving CLI tests failure (#5041)

* Add hint for solving CLI test failure.

* Add `make cli-local`

Makefile

@@ -200,12 +200,17 @@ test-exec-engine:
 # test vectors.
 test: test-release
 
-# Updates the CLI help text pages in the Lighthouse book.
+# Updates the CLI help text pages in the Lighthouse book, building with Docker.
 cli:
 	docker run --rm --user=root \
 	-v ${PWD}:/home/runner/actions-runner/lighthouse sigmaprime/github-runner \
 	bash -c 'cd lighthouse && make && ./scripts/cli.sh'
 
+# Updates the CLI help text pages in the Lighthouse book, building using local
+# `cargo`.
+cli-local:
+	make && ./scripts/cli.sh
+	
 # Runs the entire test suite, downloading test vectors if required.
 test-full: cargo-fmt test-release test-debug test-ef test-exec-engine
 

scripts/cli.sh

@@ -2,7 +2,7 @@
 
 # IMPORTANT
 # This script should NOT be run directly.
-# Run `make cli` from the root of the repository instead.
+# Run `make cli` or `make cli-local` from the root of the repository instead.
 
 set -e
 
@@ -90,7 +90,7 @@ rm -f help_general.md help_bn.md help_vc.md help_am.md help_vm.md help_vm_create
 
 # only exit at the very end
 if [[ $changes == true ]]; then
-    echo "Exiting with error to indicate changes occurred..."
+    echo "Exiting with error to indicate changes occurred. To fix, run `make cli-local` or `make cli` and commit the changes."
     exit 1
 else
     echo "CLI help texts are up to date."