fix flutter_plugin_test

Author: felangel

test/src/commands/create/commands/flutter_plugin_test.dart

@@ -25,27 +25,27 @@ class _FakeDirectoryGeneratorTarget extends Fake
     implements DirectoryGeneratorTarget {}
 
 final expectedUsage = [
-  '''
-Generate a Very Good Flutter plugin.
-
-Usage: very_good create flutter_plugin <project-name> [arguments]
--h, --help                       Print this usage information.
--o, --output-directory           The desired output directory when creating a new project.
-    --description                The description for this new project.
-                                 (defaults to "A Very Good Project created by Very Good CLI.")
-    --org-name                   The organization for this new project.
-                                 (defaults to "com.example.verygoodcore")
-    --publishable                Whether the generated project is intended to be published.
-    --platforms                  The platforms supported by the plugin. By default, all platforms are enabled. Example: --platforms=android,ios
-
-          [android] (default)    The plugin supports the Android platform.
-          [ios] (default)        The plugin supports the iOS platform.
-          [linux] (default)      The plugin supports the Linux platform.
-          [macos] (default)      The plugin supports the macOS platform.
-          [web] (default)        The plugin supports the Web platform.
-          [windows] (default)    The plugin supports the Windows platform.
-
-Run "very_good help" to see global options.''',
+  // ignore: no_adjacent_strings_in_list
+  'Generate a Very Good Flutter plugin.\n'
+      '\n'
+      'Usage: very_good create flutter_plugin <project-name> [arguments]\n'
+      '-h, --help                       Print this usage information.\n'
+      '''-o, --output-directory           The desired output directory when creating a new project.\n'''
+      '    --description                The description for this new project.\n'
+      '''                                 (defaults to "A Very Good Project created by Very Good CLI.")\n'''
+      '''    --org-name                   The organization for this new project.\n'''
+      '''                                 (defaults to "com.example.verygoodcore")\n'''
+      '''    --publishable                Whether the generated project is intended to be published.\n'''
+      '''    --platforms                  The platforms supported by the plugin. By default, all platforms are enabled. Example: --platforms=android,ios\n'''
+      '\n'
+      '''          [android] (default)    The plugin supports the Android platform.\n'''
+      '          [ios] (default)        The plugin supports the iOS platform.\n'
+      '          [web] (default)        The plugin supports the Web platform.\n'
+      '''          [linux] (default)      The plugin supports the Linux platform.\n'''
+      '''          [macos] (default)      The plugin supports the macOS platform.\n'''
+      '''          [windows] (default)    The plugin supports the Windows platform.\n'''
+      '\n'
+      'Run "very_good help" to see global options.'
 ];
 
 const pubspec = '''