[gnome-builder] build: fix a few warnings

[Christian Hergert <chergert src gnome org>]

commit a8495e7d1302d71025aa317345c4bb610fd07a21
Author: Christian Hergert <christian hergert me>
Date:   Sat Feb 7 13:51:20 2015 -0800

    build: fix a few warnings

 libide/directory/ide-directory-vcs.c |    4 ++--
 libide/git/ide-git-vcs.c             |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libide/directory/ide-directory-vcs.c b/libide/directory/ide-directory-vcs.c
index b79f8ee..0df8992 100644
--- a/libide/directory/ide-directory-vcs.c
+++ b/libide/directory/ide-directory-vcs.c
@@ -154,8 +154,8 @@ ide_directory_vcs_init_finish (GAsyncInitable  *initable,
   GTask *task = (GTask *)result;
 
   g_return_val_if_fail (IDE_IS_DIRECTORY_VCS (initable), FALSE);
-  g_return_val_if_fail (G_IS_ASYNC_RESULT (result), NULL);
-  g_return_val_if_fail (G_IS_TASK (task), NULL);
+  g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
+  g_return_val_if_fail (G_IS_TASK (task), FALSE);
 
   return g_task_propagate_boolean (task, error);
 }
diff --git a/libide/git/ide-git-vcs.c b/libide/git/ide-git-vcs.c
index 4e65b74..43934be 100644
--- a/libide/git/ide-git-vcs.c
+++ b/libide/git/ide-git-vcs.c
@@ -174,7 +174,7 @@ ide_git_vcs_reload_index (IdeGitVcs  *self,
   guint count;
   guint i;
 
-  g_return_if_fail (IDE_IS_GIT_VCS (self));
+  g_return_val_if_fail (IDE_IS_GIT_VCS (self), FALSE);
 
   index = ggit_repository_get_index (priv->repository, error);
   if (!index)