[glib: 2/4] gwinhttpfile: Document constructor as potentially returning NULL

[Philip Withnall <pwithnall src gnome org>]

commit 4b0421a73048f51031bba710bc0d155e35098cb5
Author: Philip Withnall <withnall endlessm com>
Date:   Tue Jul 2 12:09:42 2019 +0100

    gwinhttpfile: Document constructor as potentially returning NULL
    
    It can return NULL if the URI was badly encoded or couldn’t be handled
    by Windows’ API.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    Helps: #1819

 gio/win32/gwinhttpfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gio/win32/gwinhttpfile.c b/gio/win32/gwinhttpfile.c
index 465f41b6b..cf5eed31d 100644
--- a/gio/win32/gwinhttpfile.c
+++ b/gio/win32/gwinhttpfile.c
@@ -80,7 +80,7 @@ g_winhttp_file_init (GWinHttpFile *winhttp)
  * @vfs: GWinHttpVfs to use
  * @uri: URI of the GWinHttpFile to create.
  *
- * Returns: new winhttp #GFile.
+ * Returns: (nullable): new winhttp #GFile, or %NULL if there was an error constructing it.
  */
 GFile *
 _g_winhttp_file_new (GWinHttpVfs *vfs,