Merge pull request libgit2#482 from leto/patch-1

Fix docs about the command to mix the clay tests

Author: Vicent Martí

tests-clay/README.md

@@ -11,7 +11,7 @@ https://github.com/tanoku/clay
 
 * Mix the tests:
 
-        ./clay
+        ./clay .
 
 * Make sure you actually build the tests by setting: