[gimp] plug-ins: fix the RawTherapee version test.

[Jehan Pagès <jehanp src gnome org>]

commit 87bbba5cea9d9fb1b7b02d21a5e64e775ac9c8a9
Author: Alberto Griggio <alberto griggio gmail com>
Date:   Sat Jul 29 01:24:32 2017 +0200

    plug-ins: fix the RawTherapee version test.

 plug-ins/file-raw/file-rawtherapee.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/plug-ins/file-raw/file-rawtherapee.c b/plug-ins/file-raw/file-rawtherapee.c
index 6909627..000c99f 100644
--- a/plug-ins/file-raw/file-rawtherapee.c
+++ b/plug-ins/file-raw/file-rawtherapee.c
@@ -120,7 +120,8 @@ init (void)
 
       if (sscanf (rawtherapee_stdout,
                   "RawTherapee, version %d.%d",
-                  &rtmajor, &rtminor) == 2 && rtmajor >= 5 && rtminor >= 2)
+                  &rtmajor, &rtminor) == 2 &&
+          ((rtmajor == 5 && rtminor >= 2) || rtmajor >= 6))
         {
           have_rawtherapee = TRUE;
         }