doc: Remove redundant newline at the end

Jan Krems · Jan Krems · commit a6d2f882c026 · 2018-05-31T13:08:56.000+02:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -179,4 +179,3 @@ A simple bug fix:
 ```
 fix: Handle multi-byte characters in search logic
 ```
-

-Original file line number
+Diff line change
 ```
 fix: Handle multi-byte characters in search logic
 ```
+-