Document recursive invocation improvement

diff --git a/NEWS.txt b/NEWS.txt
index bdc821f873788718cfdd56fc681cdcb08eebbb6b..969028626c6dd7ce5ae1936e665bf9e66791659d 100644 (file)
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -167,3 +167,5 @@ Bug fixes
 
     - The test suite is now immune to external values of the `CCACHE_*`
       environment variables.
+
+    - Improved detection of recursive invocation.