Fix the documentation to use constant

diff --git a/gee/queue.vala b/gee/queue.vala
index 3658e67..90f3cc0 100644 (file)
--- a/gee/queue.vala
+++ b/gee/queue.vala
@@ -52,12 +52,12 @@ public interface Gee.Queue<G> : Collection<G> {
        public static const int UNBOUNDED_CAPACITY = -1;
 
        /**
-        * The capacity of this queue (or ``null`` if capacity is not bound).
+        * The capacity of this queue (or ``UNBOUNDED_CAPACITY`` if capacity is not bound).
         */
        public abstract int capacity { get; }
 
        /**
-        * The remaining capacity of this queue (or ``null`` if capacity is not
+        * The remaining capacity of this queue (or ``UNBOUNDED_CAPACITY`` if capacity is not
         * bound).
         */
        public abstract int remaining_capacity { get; }