man: Clarify the format of the db:Status-Abbrev virtual field

Closes: #824515

debian/changelog

@@ -3,6 +3,8 @@ dpkg (1.18.8) UNRELEASED; urgency=medium
   [ Guillem Jover ]
   * Documentation:
     - Improve dpkg-buildpackage(1) on environment expectations.
+    - Clarify the format of the db:Status-Abbrev virtual field in
+      dpkg-query(1). Closes: #824515
 
   [ Updated programs translations ]
   * German (Sven Joachim).

man/dpkg-query.1

@@ -252,8 +252,9 @@ for example if the package has a \fBMulti\-Arch\fP field with a value of
 It contains the package short description (since dpkg 1.16.2).
 .TP
 .B db:Status\-Abbrev
-It contains the abbreviated package status, such as \(lqii\(rq
-(since dpkg 1.16.2).
+It contains the abbreviated package status (as three characters),
+such as \(lqii \(rq or \(lqiHR\(rq (since dpkg 1.16.2).
+See the \fB\-\-list\fP command description for more details.
 .TP
 .B db:Status\-Want
 It contains the package wanted status, part of the Status field