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--- man/man1/acme.1
+++ man/man1/acme.1
down the scroll bar speeds up the rate of scrolling.
(The experimental option
.B -r
-reverses the scrolling behavior of buttons 1 and 3, to behave
+reverses the scrolling behavior of buttons 1 and 3, to behave
more like
.IR xterm (1).)
.SS Layout
(see the
.B Indent
command below) and a newline character is typed,
-acme copies leading white space on the current line to the new line.
+.I acme
+copies leading white space on the current line to the new line,
+and when a window is
+.BR Put ,
+.I acme
+removes all trailing end-of-line white space before writing the file.
The option
.B -a
-causes each window to start in
+causes each window to start in
autoindent mode.
.SS "Directory context
Each window's tag names a directory: explicitly if the window
.B Local
In the Plan 9
.IR acme ,
-this prefix causes a command to be run in
+this prefix causes a command to be run in
.IR acme 's own
file name space and environment variable group.
On Unix this is impossible.
.B $acmeshell
determines which shell is used to execute such commands; the
.IR rc (1)
-shell is used by default.
+shell is used by default.
.SS "Mouse button 3
Pointing at text with button 3 instructs
.I acme
cause a 1-2 chord, cutting the selection.
On Mac systems, the usual keyboard shortcuts
Command-C, -V, -X, and -Z invoke
-copy, paste, cut, and undo,
+copy, paste, cut, and undo,
and Command-Shift-Z invokes redo,
as in other programs.
Especially on Mac laptops, these keyboard shortcuts are