[gegl] cache: improve title and description

[Øyvind Kolås <ok src gnome org>]

commit a651ee417e92682bf40cf8b4584bbd443a7ecee3
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed May 3 02:30:10 2017 +0200

    cache: improve title and description

 operations/core/cache.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/core/cache.c b/operations/core/cache.c
index 871dc22..f4921b7 100644
--- a/operations/core/cache.c
+++ b/operations/core/cache.c
@@ -88,9 +88,9 @@ gegl_op_class_init (GeglOpClass *klass)
 
   gegl_operation_class_set_keys (operation_class,
     "name",        "gegl:cache",
-    "title",       _("Explicit cache of results at this point of graph."),
+    "title",       _("Cache"),
     "categories",  "programming",
-    "description", _("An explicit caching node"),
+    "description", _("An explicit caching node, caches results and should provide faster recomputation if 
what is cached by it is expensive but isn't changing."),
     NULL);
 }