[java-atk-wrapper] HACKING: update get_string_at_offset info

[Magdalen Berns <mberns src gnome org>]

commit 2c6bb3bdcde59a3a6618b252b122d6cc5125b2f9
Author: Magdalen Berns <m berns thismagpie com>
Date:   Wed Aug 12 13:12:24 2015 +0100

    HACKING: update get_string_at_offset info

 HACKING |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/HACKING b/HACKING
index cf941c6..ac79c28 100644
--- a/HACKING
+++ b/HACKING
@@ -46,9 +46,9 @@ Table Interface:
   get_row_at_index
 
 Text Interface:
-  get_text_after_offset  -   use get_string_at_offset instead
   get_text_at_offset     -   use get_string_at_offset instead
-  get_text_before_offset -   use get_string_at_offset instead
+                             NOTE: some legacy implementations
+                             need to default to get_text_at_offset
 
 Conventions for Writing Java ATK Wrapper Code
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