[libgee] Fix some valadocs

[Ben Iofel <beniofel src gnome org>]

commit b5cec759e21a4962fb6a82b36282d970ce42d752
Author: Ben Iofel <iofelben gmail com>
Date:   Wed Jan 20 13:06:11 2016 -0500

    Fix some valadocs

 gee/future.vala  |   10 +++++-----
 gee/hashset.vala |    5 +++--
 2 files changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/gee/future.vala b/gee/future.vala
index c9b8c9a..982cfb9 100644
--- a/gee/future.vala
+++ b/gee/future.vala
@@ -119,7 +119,7 @@ public interface Gee.Future<G> : Object {
         *
         * Note: As time taken by function might not contribute to
         *   { link wait_until} and the implementation is allowed to compute
-        *   value eagerly by { link when_done} it is recommended to use
+        *   value eagerly by { link wait_async} it is recommended to use
         *   { link task} and { link flat_map} for longer computation.
         *
         * @param func Function applied to { link value}
@@ -154,7 +154,7 @@ public interface Gee.Future<G> : Object {
         *
         * Note: As time taken by function does not contribute to
         *   { link wait_until} and the implementation is allowed to compute
-        *   value eagerly by { link when_done} it is recommended to use
+        *   value eagerly by { link wait_async} it is recommended to use
         *   { link task} and { link flat_map} for longer computation.
         *
         * @param func Function applied to { link value}
@@ -183,10 +183,10 @@ public interface Gee.Future<G> : Object {
         *
         * Note: As time taken by function does not contribute to
         *   { link wait_until} and the implementation is allowed to compute
-        *   value eagerly by { link when_done} it is recommended to return a
+        *   value eagerly by { link wait_async} it is recommended to return a
         *   future from { link task} and use { link flat_map} for longer computation.
         *
-        * @param join_func Function applied to values
+        * @param zip_func Function applied to values
         * @param second Second parameter
         * @return A combine value
         * @since 0.11.4
@@ -215,7 +215,7 @@ public interface Gee.Future<G> : Object {
         *
         * Note: As time taken by function does not contribute to
         *   { link wait_until} and the implementation is allowed to compute
-        *   value eagerly by { link when_done} it is recommended to put the
+        *   value eagerly by { link wait_async} it is recommended to put the
         *   larger computation inside the returned future for example by
         *   { link task}
         *
diff --git a/gee/hashset.vala b/gee/hashset.vala
index 959d592..076f8c5 100644
--- a/gee/hashset.vala
+++ b/gee/hashset.vala
@@ -55,8 +55,9 @@ namespace Gee {
         * Note: The relationship //must not// change during lifetime of the
         *   delegate.
         *
-        * @param v Hashed value
-        * @return Hash for given value
+        * @param a First value
+        * @param b Second value
+        * @return Whether values are equal
         *
         * @see Hashable
         */