Update indentation style

Author: propensive

src/core/digression.StackTrace.scala

@@ -215,8 +215,11 @@ object StackTrace:
     StackTrace(component, className, message, frames, cause.map(_.nn).map(StackTrace(_)).optional)
 
 case class StackTrace
-    (component: Text, className: Text, message: Message, frames: List[StackTrace.Frame],
-        cause: Optional[StackTrace]):
+   (component: Text,
+    className: Text,
+    message:   Message,
+    frames:    List[StackTrace.Frame],
+    cause:     Optional[StackTrace]):
 
   def crop(cutClassName: Text, cutMethod: Text): StackTrace =
     val frames2 = frames.takeWhile { f => f.method.className != cutClassName || f.method.method != cutMethod }