bin/get-github-release: fetch the most recent not the least recent

bin/get-github-release.go

@@ -244,10 +244,12 @@ func getAssetFromReleasesPage(project string, matchName *regexp.Regexp) (assetUR
 				if a.Key == "href" {
 					if name := path.Base(a.Val); matchName.MatchString(name) && isOurOsArch(name) {
 						if u, err := rest.URLJoin(base, a.Val); err == nil {
+							if assetName == "" {
 								assetName = name
 								assetURL = u.String()
 							}
 						}
+					}
 					break
 				}
 			}