[gobject-introspection] gir: Update annotations from GLib 2.52.0

[Rico Tzschichholz <ricotz src gnome org>]

commit 1d17460b070c2da02ddeae2043d3e8d8df061672
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Mar 20 22:04:20 2017 +0100

    gir: Update annotations from GLib 2.52.0

 gir/glib-2.0.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gir/glib-2.0.c b/gir/glib-2.0.c
index c900020..bddd8c5 100644
--- a/gir/glib-2.0.c
+++ b/gir/glib-2.0.c
@@ -10488,6 +10488,8 @@
  * be written to it. It will need up to 4 bytes, or up to 5 bytes if
  * line-breaking is enabled.
  *
+ * The @out array will not be automatically nul-terminated.
+ *
  * Returns: The number of bytes of output that was written
  * Since: 2.12
  */
@@ -33225,8 +33227,7 @@
 /**
  * g_utf8_get_char_validated:
  * @p: a pointer to Unicode character encoded as UTF-8
- * @max_len: the maximum number of bytes to read, or -1, for no maximum or
- *     if @p is nul-terminated
+ * @max_len: the maximum number of bytes to read, or -1 if @p is nul-terminated
  *
  * Convert a sequence of bytes encoded as UTF-8 to a Unicode character.
  * This function checks for incomplete characters, for invalid characters