* lisp/indent.el (indent-rigidly): Clarify exiting the transient
mode (bug#46296).
If called interactively with no prefix argument, activate a
transient mode in which the indentation can be adjusted interactively
by typing \\<indent-rigidly-map>\\[indent-rigidly-left], \\[indent-rigidly-right], \\[indent-rigidly-left-to-tab-stop], or \\[indent-rigidly-right-to-tab-stop].
-Typing any other key deactivates the transient mode.
+Typing any other key deactivates the transient mode, and this key is then
+acted upon as normally.
If called from a program, or interactively with prefix ARG,
indent all lines starting in the region forward by ARG columns.