Release 1.2.1

Changes since 1.2.0:

Bugfix: Instrument the files of a package in deterministic order.
This regression was introduced between 1.1.1 and 1.2.0.

Author: rillig

main.go

@@ -13,7 +13,7 @@ import (
 	"strings"
 )
 
-const version = "1.2.1-snapshot"
+const version = "1.2.1"
 
 var exit = os.Exit