[gimp] libgimpbase: fix broken annotation.

[Jehan <jehanp src gnome org>]

commit fead2f7d9d7c5d6c8b353f58cac020f061770190
Author: Jehan <jehan girinstud io>
Date:   Mon Aug 5 16:41:44 2019 +0200

    libgimpbase: fix broken annotation.
    
    s/default_/default_value/

 libgimpbase/gimpparamspecs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgimpbase/gimpparamspecs.c b/libgimpbase/gimpparamspecs.c
index 40bada7916..3a3ca345a3 100644
--- a/libgimpbase/gimpparamspecs.c
+++ b/libgimpbase/gimpparamspecs.c
@@ -468,7 +468,7 @@ gimp_param_string_validate (GParamSpec *pspec,
  * @allow_non_utf8: Whether non-UTF-8 strings are allowed.
  * @null_ok:        Whether %NULL is allowed.
  * @non_empty:      Whether a non-½NULL value must be set.
- * @default_:       The default value.
+ * @default_value:  The default value.
  * @flags:          Flags for the property specified.
  *
  * Creates a new #GimpParamSpecString specifying a