v test-fmt: fix some embedded comments in expressions

vlib/clipboard/clipboard_linux.c.v

@@ -260,7 +260,8 @@ fn (mut cb Clipboard) start_listener(){
 		match event.@type {
 			C.DestroyNotify {
 				if event.xdestroywindow.window == cb.window {
-					return // we are done
+					// we are done
+					return 
 				}
 			}
 			C.SelectionClear {

vlib/clipboard/clipboard_test.v

@@ -14,8 +14,8 @@ fn run_test(is_primary bool){
 
 fn test_primary(){
 	$if linux {
-		return
 		//run_test(true)
+		return
 	}
 }