Add missing (allow-none) annotations to g_value_set_string functions

diff --git a/gobject/gvaluetypes.c b/gobject/gvaluetypes.c
index dd3fa85..a05ccd9 100644 (file)
--- a/gobject/gvaluetypes.c
+++ b/gobject/gvaluetypes.c
@@ -985,7 +985,7 @@ g_value_get_double (const GValue *value)
 /**
  * g_value_set_string:
  * @value: a valid #GValue of type %G_TYPE_STRING
- * @v_string: caller-owned string to be duplicated for the #GValue
+ * @v_string: (allow-none): caller-owned string to be duplicated for the #GValue
  *
  * Set the contents of a %G_TYPE_STRING #GValue to @v_string.
  */
@@ -1010,7 +1010,7 @@ g_value_set_string (GValue        *value,
 /**
  * g_value_set_static_string:
  * @value: a valid #GValue of type %G_TYPE_STRING
- * @v_string: static string to be set
+ * @v_string: (allow-none): static string to be set
  *
  * Set the contents of a %G_TYPE_STRING #GValue to @v_string.
  * The string is assumed to be static, and is thus not duplicated
@@ -1031,7 +1031,7 @@ g_value_set_static_string (GValue      *value,
 /**
  * g_value_set_string_take_ownership:
  * @value: a valid #GValue of type %G_TYPE_STRING
- * @v_string: duplicated unowned string to be set
+ * @v_string: (allow-none): duplicated unowned string to be set
  *
  * This is an internal function introduced mainly for C marshallers.
  *
@@ -1047,7 +1047,7 @@ g_value_set_string_take_ownership (GValue *value,
 /**
  * g_value_take_string:
  * @value: a valid #GValue of type %G_TYPE_STRING
- * @v_string: string to take ownership of
+ * @v_string: (allow-none): string to take ownership of
  *
  * Sets the contents of a %G_TYPE_STRING #GValue to @v_string.
  *