fix show_examples_on_error when no examples

Author: DannyBen

lib/bashly/views/command/examples_on_error.gtx

@@ -1,4 +1,4 @@
-if Settings.show_examples_on_error && examples.any? 
+if Settings.show_examples_on_error && examples
   = view_marker
 
   > printf "{{ strings[:examples_caption_on_error] }}\n" >&2

spec/approvals/fixtures/examples-on-error-without-examples

@@ -0,0 +1,17 @@
+creating user files in src
+created src/download_command.sh
+created src/upload_command.sh
+created ./cli
+run ./cli --help to test your bash script
++ ./cli download
+missing required argument: SOURCE
+usage: cli download SOURCE
++ ./cli upload
+missing required argument: SOURCE
+usage: cli upload SOURCE
+examples:
+  Upload a file
+  $ cli upload profile.png -u admin -p s3cr3t
+  
+  Upload a file (you will be prompted to provide a password)
+  $ cli upload profile.png --user admin

spec/fixtures/workspaces/examples-on-error-without-examples/.gitignore

@@ -0,0 +1,2 @@
+cli
+src/*.sh

spec/fixtures/workspaces/examples-on-error-without-examples/README.md

@@ -0,0 +1,4 @@
+This fixture tests that there is generation does not fail when there are no
+examples, and `show_examples_on_error` is set
+
+Reference issue: https://github.com/DannyBen/bashly/pull/530#issuecomment-2210714825

spec/fixtures/workspaces/examples-on-error-without-examples/settings.yml

@@ -0,0 +1 @@
+show_examples_on_error: true

spec/fixtures/workspaces/examples-on-error-without-examples/src/bashly.yml

@@ -0,0 +1,27 @@
+name: cli
+version: 0.1.0
+
+commands:
+- name: download
+  help: Download a file
+
+  args:
+  - name: source
+    required: true
+    help: URL to download from
+
+- name: upload
+  help: Upload a file
+  args:
+  - name: source
+    required: true
+    help: File to upload
+
+  examples: |-
+    Upload a file
+    $ cli upload profile.png -u admin -p s3cr3t
+
+    Upload a file (you will be prompted to provide a password)
+    $ cli upload profile.png --user admin
+
+    

spec/fixtures/workspaces/examples-on-error-without-examples/test.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+rm -f ./src/*.sh
+rm -f ./cli
+
+bundle exec bashly generate
+
+set -x
+
+./cli download
+./cli upload