Merge pull request #2215 from AmineChikhaoui/s3-multipart-debug

use debug instead of printTalkative to avoid spamming hydra queue-runner

src/libstore/s3-binary-cache-store.cc

@@ -299,7 +299,7 @@ struct S3BinaryCacheStoreImpl : public S3BinaryCacheStore
                     &transferHandle) {
               //FIXME: find a way to properly abort the multipart upload.
               checkInterrupt();
-              printTalkative("upload progress ('%s'): '%d' of '%d' bytes",
+              debug("upload progress ('%s'): '%d' of '%d' bytes",
                              path,
                              transferHandle->GetBytesTransferred(),
                              transferHandle->GetBytesTotalSize());