eliminated panic when serving requests from empty registry v0.4.11

when generating an etag from a query that returns no results,
indexing into the byte slice caused that thread to panic.

now checking for a nil byte slice or a small byte slice in
handlers.go:46:getEtag()

on nil byte slice, return empty string for etag. on small
byte slice, don't truncate it, but return the whole thing.

1 files changed, 1 insertions, 1 deletions

diff --git a/svc/query.go b/svc/query.go
index 7047df3..8f22838 100644
--- a/svc/query.go
+++ b/svc/query.go
@@ -61,7 +61,7 @@ func dedupe(list []string) []string {
 // appending each entry to a byte slice, and adding
 // newlines where appropriate.
 func parseQueryOut(out []string) []byte {
-	var data []byte
+	data := make([]byte, 0)
 
 	for i, e := range out {
 		data = append(data, []byte(e)...)