[luatex] \tracingmacros additional newlines in the log

[Linas Stonys]

In older luatex  (for example TL2019 Version 1.10.0) \tracingmacros 
output was  without newlines in between
the macro parameters:
\foo #1#2->
#1<-a
#2<-b

Now luatex (TL2023 Version 1.17.0) outputs extra newlines:
\foo #1#2->

#1<-a

#2<-b

TL2023 pdftex outputs standard (old)  format without extra newlines.
With these extra spaces seems harder to follow up the code output.

Real output example (enabled \tracingmacros and \tracingcommands):

\strip at pt ->\expandafter \rem at pt \the |
{\expandafter} |    these lines looks like one block and its easy to 
follow up
{\the} |

\rem at pt #1.#2pt->#1\ifnum #2>\z@ .#2\fi 
                                                                 |
|
#1<-10 |
|     this block is harder to follow up
#2<-0 |
{\ifnum} |
{false} |


Is this done on purpose? Could it be available original style (like 
pdftex does) with some \tracingmacros value (like \tracingmacros=3)