[JW Lua] Bug: Negative processing time

[Thomas Weber]

Dear Jari,

it seems there is a problem with calculating the processing time.  I ran a script from the Explorer tab and JW Lua reported a processing time of -887.031 seconds.  The script took 5-10 minutes in reality (this seems to suggest there's room for improving the script, but anyway).  On earlier and later runs of about the same duration, the correct time was displayed.

It's possible to do one's own execution time calculation using os.time(), but I thought I'd let you know.

Viele Grüße
Thomas Weber