Changed behaviour into implementation.
diff --git a/doc/contrib.txt b/doc/contrib.txt
index 8620e75..7c99b9b 100644
--- a/doc/contrib.txt
+++ b/doc/contrib.txt
@@ -27,7 +27,7 @@
1. JavaDoc compliant and Doxygen compatible.
2. Function documentation above functions in .c files, not .h files.
- (This forces you to synchronize documentation and behaviour.)
+ (This forces you to synchronize documentation and implementation.)
3. Use current documentation style as further reference.
2.3 Bug reports and patches:
