adding in logging

vendor/go.uber.org/zap/scripts/cover.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > cover.out
+
+for d in $(go list $@); do
+    go test -race -coverprofile=profile.out $d
+    if [ -f profile.out ]; then
+        cat profile.out >> cover.out
+        rm profile.out
+    fi
+done