Workarounds for Macintosh /M=messagestr in e.g. NewPath
Wed, 10/11/2017 - 04:01 am
From the help file:
As of OS X 10.11, Apple no longer shows the title bar in the Open File, Choose Folder, and Create Folder dialogs. Consequently, the prompt specified by the /M flag, which was displayed in the title bar, is no longer visible. Apple still shows the title bar in the Save File dialog.