Addressing review comments

reverting query string caching in favour of Go 1.9 sqlx features
 moving context definition out of call.End to upper level

go-fmt.sh

@@ -1,7 +1,7 @@
 #! /bin/sh
 set -e
 
-listFilesExit () {
+function listFilesExit () {
 	echo The following files need to have go fmt ran:
 	echo $NEED_TO_FORMAT
 	exit 1