acc: Do not show all replacements on every failure (#2331)

## Changes
- Only print replacements if VERBOSE_TEST flag is set.
- This is set on CI but not when you do "go test" or "make test".

Note, env var is used, so that it can be set in Makefile.

## Tests
Manually.

Makefile

@@ -28,7 +28,7 @@ test:
 
 cover:
 	rm -fr ./acceptance/build/cover/
-	CLI_GOCOVERDIR=build/cover ${GOTESTSUM_CMD} -- -coverprofile=coverage.txt ${PACKAGES}
+	VERBOSE_TEST=1 CLI_GOCOVERDIR=build/cover ${GOTESTSUM_CMD} -- -coverprofile=coverage.txt ${PACKAGES}
 	rm -fr ./acceptance/build/cover-merged/
 	mkdir -p acceptance/build/cover-merged/
 	go tool covdata merge -i $$(printf '%s,' acceptance/build/cover/* | sed 's/,$$//') -o acceptance/build/cover-merged/
@@ -61,6 +61,6 @@ integration: vendor
 	$(INTEGRATION)
 
 integration-short: vendor
-	$(INTEGRATION) -short
+	VERBOSE_TEST=1 $(INTEGRATION) -short
 
 .PHONY: lint tidy lintcheck fmt test cover showcover build snapshot vendor schema integration integration-short acc-cover acc-showcover docs

acceptance/acceptance_test.go

@@ -32,6 +32,7 @@ import (
 var (
 	KeepTmp     bool
 	NoRepl      bool
+	VerboseTest bool = os.Getenv("VERBOSE_TEST") != ""
 )
 
 // In order to debug CLI running under acceptance test, set this to full subtest name, e.g. "bundle/variables/empty"
@@ -412,7 +413,7 @@ func doComparison(t *testing.T, repls testdiff.ReplacementsContext, dirRef, dirN
 		testutil.WriteFile(t, pathRef, valueNew)
 	}
 
-	if !equal && printedRepls != nil && !*printedRepls {
+	if VerboseTest && !equal && printedRepls != nil && !*printedRepls {
 		*printedRepls = true
 		var items []string
 		for _, item := range repls.Repls {