[gimp/gimp-2-8] There only *might* be an error string.

[Ed J <edj src gnome org>]

commit 57180cd3cc06c4f65a7e8f12b980239fd4ff9bbb
Author: Ed J <edj src gnome org>
Date:   Sat May 3 08:38:31 2014 +0100

    There only *might* be an error string.

 libgimp/gimp.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/libgimp/gimp.c b/libgimp/gimp.c
index eb4431f..f737e0d 100644
--- a/libgimp/gimp.c
+++ b/libgimp/gimp.c
@@ -994,7 +994,8 @@ gimp_read_expect_msg (GimpWireMessage *msg,
  *
  * Return value: the procedure's return values unless there was an error,
  * in which case the zero-th return value will be the error status, and
- * the first return value will be a string detailing the error.
+ * if there are two values returned, the other return value will be a
+ * string detailing the error.
  **/
 GimpParam *
 gimp_run_procedure2 (const gchar     *name,