Fix logging around optional dependency failures

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/install.js b/lib/install.js
index d2a8b0bcf..e92ef67a2 100644
--- a/lib/install.js
+++ b/lib/install.js
@@ -514,7 +514,8 @@ function targetResolver (where, context, deps) {
     cache.add(what, function (er, data) {
       if (er && parent && parent.optionalDependencies &&
           parent.optionalDependencies.hasOwnProperty(what.split("@")[0])) {
-        log.warn([target._id, er], "optional dependency failed, continuing")
+        log.warn(what, "optional dependency failed, continuing")
+        log.verbose([what, er], "optional dependency failed, continuing")
         return cb(null, [])
       }
 
@@ -547,7 +548,8 @@ function installOne (target, where, context, cb) {
     // check if this one is optional to its parent.
     if (er && context.parent && context.parent.optionalDependencies &&
         context.parent.optionalDependencies.hasOwnProperty(target.name)) {
-      log.warn([target._id, er], "optional dependency failed, continuing")
+      log.warn(target._id, "optional dependency failed, continuing")
+      log.verbose([target._id, er], "optional dependency failed, continuing")
       er = null
     }