[glib] Fix annotations of g_compute_hmac_for_data

[Matthias Clasen <matthiasc src gnome org>]

commit a9e9bc74c370bad870011b9004a712cdfa279ef2
Author: Giovanni Campagna <gcampagn cs stanford edu>
Date:   Wed Apr 20 11:30:30 2016 -0700

    Fix annotations of g_compute_hmac_for_data
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765338

 glib/ghmac.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glib/ghmac.c b/glib/ghmac.c
index a5ac705..d3334d0 100644
--- a/glib/ghmac.c
+++ b/glib/ghmac.c
@@ -333,7 +333,7 @@ g_hmac_get_digest (GHmac  *hmac,
  * @digest_type: a #GChecksumType to use for the HMAC
  * @key: (array length=key_len): the key to use in the HMAC
  * @key_len: the length of the key
- * @data: binary blob to compute the HMAC of
+ * @data: (array length=length): binary blob to compute the HMAC of
  * @length: length of @data
  *
  * Computes the HMAC for a binary @data of @length. This is a