Build Status concatenates Opening... and Downloading... messages from PropLoader

[PropGit]

I can't understand why this is happening, but some messages from PropLoader are concatenated by SimpleIDE on the Build Status window.

One such case is the Opening... and Downloading messages...

For example, with the Blank Simple Project, at the point of downloading, Build Status looks like:

Opening file 'cmm/Blank Simple Project.elf'Downloading file to port /dev/cu.usbserial-WX9S5M0
8296 bytes sent

Verifying RAM
Download successful!

Notice that most of the messages appear on separate lines (as they do with PropLoader on the command line) but the Opening... and Downloading... messages are concatenated together on the first line.

The IDE Debug Info looks like this: "Opening file 'cmm/Blank Simple Project.elf'\nDownloading file to port /dev/cu.usbserial-WX9S5M0\n..."

I've seen occasional other messages appear concatenated too, but at the moment I don't see that.