Merge pull request #41 from eparis/fix-slice-defaults Do not append to default values in {String,Int}Slice

diff --git a/bool_test.go b/bool_test.go
index febf667..afd25ae 100644
--- a/bool_test.go
+++ b/bool_test.go

@@ -51,7 +51,7 @@
 	return fmt.Sprintf("%v", bool(*v == triStateTrue))
 }
 
-// The type of the flag as requred by the pflag.Value interface
+// The type of the flag as required by the pflag.Value interface
 func (v *triStateValue) Type() string {
 	return "version"
 }