Add "warning" verbosity level

This ensures that "nix" shows warnings. Previously these were hidden
because they were at "info" level.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nix/main.cc b/src/nix/main.cc
index a1fcb892a..ced87f653 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -102,7 +102,7 @@ void mainWrapped(int argc, char * * argv)
         if (legacy) return legacy(argc, argv);
     }
 
-    verbosity = lvlError;
+    verbosity = lvlWarn;
     settings.verboseBuild = false;
     evalSettings.pureEval = true;