allowing showing any issue

git_redmine.py

@@ -208,8 +208,9 @@ def apply(issue):
 
 
 @issue.command()
-def show():
-    issue = get_current_issue()
+@click.option('--issue', default=None, type=int)
+def show(issue):
+    issue = get_issue(issue)
     click.echo('URL: %s' % issue.url)
     click.echo('Subject: %s' % issue.subject)
     click.echo('Description: %s' % issue.description)