From 4c2be5285e1419844377c11484bd684b45948958 Mon Sep 17 00:00:00 2001
From: Jimmy Zelinskie <jimmy.zelinskie+git@gmail.com>
Date: Thu, 5 Jul 2018 19:09:45 -0400
Subject: [PATCH] vulnsrc/alpine: avoid shadowing vars

---
 ext/vulnsrc/alpine/alpine.go | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/ext/vulnsrc/alpine/alpine.go b/ext/vulnsrc/alpine/alpine.go
index 5b6f46e1..051f3c6d 100644
--- a/ext/vulnsrc/alpine/alpine.go
+++ b/ext/vulnsrc/alpine/alpine.go
@@ -58,19 +58,20 @@ func (u *updater) Update(db database.Datastore) (resp vulnsrc.UpdateResponse, er
 		return
 	}
 
-	// Ask the database for the latest commit we successfully applied.
-	var dbCommit string
+	// Open a database transaction.
 	tx, err := db.Begin()
 	if err != nil {
 		return
 	}
 	defer tx.Rollback()
 
-	dbCommit, ok, err := tx.FindKeyValue(updaterFlag)
+	// Ask the database for the latest commit we successfully applied.
+	var dbCommit string
+	var ok bool
+	dbCommit, ok, err = tx.FindKeyValue(updaterFlag)
 	if err != nil {
 		return
 	}
-
 	if !ok {
 		dbCommit = ""
 	}