[libmediaart] cache: Allow null values in artist, title and prefix

[Martyn James Russell <mr src gnome org>]

commit d950b30a76df6b2d809da6a149b68f54742eb49b
Author: Arnel A. Borja <arnelborja src gnome org>
Date:   Wed Apr 2 14:31:25 2014 +0800

    cache: Allow null values in artist, title and prefix
    
    The function media_art_get_file checks for null values in artist, title and
    prefix arguments, and puts special values on them if they do.
    
    Do the same on media_art_get_path which calls media_art_get_file internally.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=727478

 libmediaart/cache.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/libmediaart/cache.c b/libmediaart/cache.c
index abc1e63..3492683 100644
--- a/libmediaart/cache.c
+++ b/libmediaart/cache.c
@@ -237,9 +237,9 @@ media_art_checksum_for_data (GChecksumType  checksum_type,
 
 /**
  * media_art_get_file:
- * @artist: the artist
- * @title: the title
- * @prefix: the prefix for cache files, for example "album"
+ * @artist: (allow-none): the artist
+ * @title: (allow-none): the title
+ * @prefix: (allow-none): the prefix for cache files, for example "album"
  * @file: (allow-none): a #GFile representing the actual media art or %NULL
  * @cache_file: (out) (transfer full) (allow-none): a pointer to a
  * #GFile which represents the cached file for media art, or %NULL
@@ -387,9 +387,9 @@ media_art_get_file (const gchar  *artist,
 
 /**
  * media_art_get_path:
- * @artist: the artist
- * @title: the title
- * @prefix: the prefix, for example "album"
+ * @artist: (allow-none): the artist
+ * @title: (allow-none): the title
+ * @prefix: (allow-none): the prefix, for example "album"
  * @uri: (allow-none): the uri of the file or %NULL
  * @cache_path: (out) (transfer full) (allow-none): a string
  * representing the path to the cache for this media art