93/118: Reduce verbosity

[Ludovic Courtès]

civodul pushed a commit to branch nix
in repository guix.

commit 790271559cb8b36cd8fcdc533f41be88ec15ad08
Author: Eelco Dolstra <address@hidden>
Date:   Sun Aug 17 19:11:50 2014 +0200

    Reduce verbosity
---
 nix/libstore/build.cc |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index e72fb50..be19dd8 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -1451,7 +1451,8 @@ void DerivationGoal::buildDone()
         outputLocks.unlock();
 
     } catch (BuildError & e) {
-        printMsg(lvlError, e.msg());
+        if (!hook)
+            printMsg(lvlError, e.msg());
         outputLocks.unlock();
         buildUser.release();