chore: better format defaults

- don't append new line at the end and keep the content as it is
- default retain line breaks for readability since format itself is all about readability

command/command.go

@@ -122,7 +122,7 @@ func RunCommand(
 		if err != nil {
 			return err
 		}
-		fmt.Println(string(out))
+		fmt.Print(string(out))
 	}
 
 	return nil

formatters/basic/config.go

@@ -34,7 +34,8 @@ func DefaultConfig() *Config {
 		lineBreakStyle = yamlfmt.LineBreakStyleCRLF
 	}
 	return &Config{
-		Indent:     2,
-		LineEnding: lineBreakStyle,
+		Indent:           2,
+		LineEnding:       lineBreakStyle,
+		RetainLineBreaks: true,
 	}
 }