A detached session no frontend has sized is 160x50, not 80x24

At 80x24 a script's third or fourth pane/new was refused for want of
rows. `size` still sets any other size, and a frontend attaching its own.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/docs/fs.md b/docs/fs.md
index 92f2876a..7baac666 100644
--- a/docs/fs.md
+++ b/docs/fs.md
@@ -113,7 +113,7 @@ Existing Plan9port/v9fs clients need a userspace bridge for QUIC.
              which makes its column the active one as a click there would
 /ctl         the settings, one a line as a write takes them; write a setting or a session builtin;
              `size <cols> <rows>` sets the screen of a session no frontend is attached to
-             (`--detach`, 80x24 until then; refused while a frontend owns the size),
+             (`--detach`, 160x50 until then; refused while a frontend owns the size),
              from 20x6 to 4096x4096 (outside that, `invalid size`, EINVAL), and refused
              when a column has not the rows for its panes' minima, each its tag and 2
              rows, the minimum placement keeps; so a size once taken is taken again,