Tweak newline handling in --verbose output

"Loading book" now appears on separate lines. The progress indicators
and "generating .." lines do not have newlines so that the carriage
returns still work.

When generating a single file, the verbose output has a newline at the
end now. There are cases where this is one newline too many, but this
seems better than having one too few. This could be avoided, but would
require more logic that seems too much effort at this stage.

Author: bernhard-herzog

cmd/fakedoc/main.go

@@ -132,7 +132,11 @@ func generate(
 		templ, limits, sizeFactor, forceMaxSize, rng, requireRegex, verbose)
 
 	if numOutputs == 1 {
-		return generateToFile(generator, outputfile, formatted)
+		err := generateToFile(generator, outputfile, formatted)
+		if outputfile != "" {
+			generator.Verbosef("\n")
+		}
+		return err
 	}
 
 	tmplFilename, err := template.New("filename").Parse(outputfile)

pkg/fakedoc/generator.go

@@ -625,7 +625,7 @@ func (gen *Generator) book(minlength, maxlength int, path string, limits *LimitN
 	length := minlength + gen.Rand.IntN(maxlength-minlength+1)
 	content, ok := gen.FileCache[path]
 	if !ok {
-		gen.Verbosef("Loading book %q\n", path)
+		gen.Verbosef("\nLoading book %q\n", path)
 		file, err := os.Open(path)
 		if err != nil {
 			return "", err