caddyfile: fix replacing variables on imported files (#2970)

* fix replacing variables on imported files

* refactored replaceEnvVars to ensure it is always called

* Use byte slices for easier use

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/caddyconfig/caddyfile/dispenser_test.go b/caddyconfig/caddyfile/dispenser_test.go
index 494db36..86413a6 100755
--- a/caddyconfig/caddyfile/dispenser_test.go
+++ b/caddyconfig/caddyfile/dispenser_test.go
@@ -308,7 +308,7 @@ func TestDispenser_ArgErr_Err(t *testing.T) {
 }
 
 func newTestDispenser(input string) *Dispenser {
-	tokens, err := allTokens("Testfile", strings.NewReader(input))
+	tokens, err := allTokens("Testfile", []byte(input))
 	if err != nil && err != io.EOF {
 		log.Fatalf("getting all tokens from input: %v", err)
 	}