g-i: add missing out annotations

gdk/gdkcontentformats.c

@@ -223,7 +223,7 @@ gdk_content_formats_unref (GdkContentFormats *formats)
 /**
  * gdk_content_formats_print:
  * @formats: a `GdkContentFormats`
- * @string: a `GString` to print into
+ * @string: (out caller-allocates): a `GString` to print into
  *
  * Prints the given @formats into a string for human consumption.
  *

gdk/gdkdisplay.c

@@ -1447,7 +1447,7 @@ gdk_display_emit_opened (GdkDisplay *display)
  * gdk_display_get_setting:
  * @display: a `GdkDisplay`
  * @name: the name of the setting
- * @value: location to store the value of the setting
+ * @value: (out caller-allocates): location to store the value of the setting
  *
  * Retrieves a desktop-wide setting such as double-click time
  * for the @display.

gsk/gskglshader.c

@@ -879,7 +879,7 @@ gsk_gl_shader_get_arg_bool (GskGLShader *shader,
  * @shader: a `GskGLShader`
  * @args: uniform arguments
  * @idx: index of the uniform
- * @out_value: location to store the uniform value in
+ * @out_value: (out caller-allocates): location to store the uniform value in
  *
  * Gets the value of the uniform @idx in the @args block.
  *
@@ -912,7 +912,7 @@ gsk_gl_shader_get_arg_vec2 (GskGLShader     *shader,
  * @shader: a `GskGLShader`
  * @args: uniform arguments
  * @idx: index of the uniform
- * @out_value: location to store the uniform value in
+ * @out_value: (out caller-allocates): location to store the uniform value in
  *
  * Gets the value of the uniform @idx in the @args block.
  *
@@ -945,7 +945,7 @@ gsk_gl_shader_get_arg_vec3 (GskGLShader     *shader,
  * @shader: a `GskGLShader`
  * @args: uniform arguments
  * @idx: index of the uniform
- * @out_value: location to store set the uniform value in
+ * @out_value: (out caller-allocates): location to store set the uniform value in
  *
  * Gets the value of the uniform @idx in the @args block.
  *

gsk/gsktransform.c

@@ -1371,7 +1371,7 @@ gsk_transform_unref (GskTransform *self)
 /**
  * gsk_transform_print:
  * @self: (nullable): a `GskTransform`
- * @string:  The string to print into
+ * @string: (out caller-allocates):  The string to print into
  *
  * Converts @self into a human-readable string representation suitable
  * for printing.

gtk/css/gtkcsssection.c

@@ -188,7 +188,7 @@ gtk_css_section_get_end_location (const GtkCssSection *section)
 /**
  * gtk_css_section_print:
  * @section: a section
- * @string: a `GString` to print to
+ * @string: (out caller-allocates): a `GString` to print to
  *
  * Prints the `section` into `string` in a human-readable form.
  *

gtk/gtkshortcutaction.c

@@ -116,7 +116,7 @@ gtk_shortcut_action_to_string (GtkShortcutAction *self)
 /**
  * gtk_shortcut_action_print:
  * @self: a `GtkShortcutAction`
- * @string: a `GString` to print into
+ * @string: (out caller-allocates): a `GString` to print into
  *
  * Prints the given action into a string for the developer.
  *

gtk/gtkshortcuttrigger.c

@@ -220,7 +220,7 @@ gtk_shortcut_trigger_to_string (GtkShortcutTrigger *self)
 /**
  * gtk_shortcut_trigger_print:
  * @self: a `GtkShortcutTrigger`
- * @string: a `GString` to print into
+ * @string: (out caller-allocates): a `GString` to print into
  *
  * Prints the given trigger into a string for the developer.
  * This is meant for debugging and logging.
@@ -276,7 +276,7 @@ gtk_shortcut_trigger_to_label (GtkShortcutTrigger *self,
  * gtk_shortcut_trigger_print_label:
  * @self: a `GtkShortcutTrigger`
  * @display: `GdkDisplay` to print for
- * @string: a `GString` to print into
+ * @string: (out caller-allocates): a `GString` to print into
  *
  * Prints the given trigger into a string.
  *