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-rw-r--r--docs/fs.md6
1 files changed, 4 insertions, 2 deletions
diff --git a/docs/fs.md b/docs/fs.md
index b588b1f1..e13af3c2 100644
--- a/docs/fs.md
+++ b/docs/fs.md
@@ -254,8 +254,10 @@ takes (`Verbose on`, `WindowOpacity 70`, `PanelSlide off`, `DumpDir
back changes nothing; a setting the frontend cannot show (`Lift`,
`GripWidth` on a terminal) is refused as `Lift is GUI-only, invalid here`
(EINVAL: a request this build cannot take); a `Shell` or `Tty` naming no
-shell says `no shell "x", not found` (ENOENT); a Dump into a `DumpDir`
-that is not there says `Dump <path>: no such directory` (ENOENT); platform and startup facts are `/status`'s and the
+shell says `no shell "x", not found` (ENOENT); a `DumpDir` whose last
+directory is missing has it made at the Dump, and one further up missing
+says `Dump <path>: no such directory` (ENOENT), one that is no directory
+(`/dev/null`) `Dump <path>: /dev/null is not a directory`; platform and startup facts are `/status`'s and the
Config window's, not settings. A pane's `ctl` takes the builtins that act on
a pane (`Del`, or `Del k`/`Del j` to give its rows to the pane above or
below, `Save f`, `Collapse`, which folds that pane, `Undo` and