lappend(n) on macOS
The text f144af08ab0e, as Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2 shipped it.
Append list elements onto a variable
The text f144af08ab0e, as Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2 shipped it.
Append list elements onto a variable