Update JIRA ID pattern to include digits and underscores

Author: Clindbergh

plugins/tasks/tasks-core/jira/src/com/intellij/tasks/jira/JiraRepository.java

@@ -55,7 +55,7 @@ public final class JiraRepository extends BaseRepositoryImpl {
   private static final boolean BASIC_AUTH_ONLY = Boolean.getBoolean("tasks.jira.basic.auth.only");
   private static final boolean REDISCOVER_API = Boolean.getBoolean("tasks.jira.rediscover.api");
 
-  public static final Pattern JIRA_ID_PATTERN = Pattern.compile("\\p{javaUpperCase}+-\\d+");
+  public static final Pattern JIRA_ID_PATTERN = Pattern.compile("[\\p{javaUpperCase}\\p{Digit}_]+-\\d+");
   public static final String AUTH_COOKIE_NAME = "JSESSIONID";
 
   /**
@@ -459,4 +459,4 @@ public void setJiraVersion(@Nullable String jiraVersion) {
   public String getRestUrl(String... parts) {
     return getUrl() + REST_API_PATH + "/" + StringUtil.join(parts, "/");
   }
-}
+}