Cleanup: 0 -> nullptr.

diff --git a/src/lib/config.cc b/src/lib/config.cc
index 7b4d67822736c9e9146b65560d52392e61c0a2d2..c296ba2a7a67b5fd5591c5bd47cce94d17003937 100644 (file)
--- a/src/lib/config.cc
+++ b/src/lib/config.cc
@@ -1219,7 +1219,7 @@ void
 Config::drop ()
 {
        delete _instance;
-       _instance = 0;
+       _instance = nullptr;
 }
 
 void