The patch enables the plugin to post to JIRA projects with underscore in the
project key.

Index: Updater.java
— Updater.java Base (BASE)
+++ Updater.java Locally Modified (Based On LOCAL)
@@ -152,7 +152,7 @@

• At least two upper alphabetic.
• Numbers are also allowed as project keys (see issue #729)
  */

• public static final Pattern ISSUE_PATTERN =
  Pattern.compile("\\b[A-Z]([A-Z0-9]+)-[1-9][0-9]*
  b");
  + public static final Pattern ISSUE_PATTERN =
  Pattern.compile("\\b[A-Z]([A-Z0-9_]+)-[1-9][0-9]*
  b");

private static final Logger LOGGER = Logger.getLogger(Updater.class.getName());