`@p<terminal>:N` past the terminal's last line is a miss, as in a file

The line-past-end check read only a file pane's lines, so a terminal's
look went nowhere and said nothing. A terminal's lines are its logical
lines, as a +Search of it lists them.

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

1 files changed, 6 insertions, 0 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 9bb9c044..58fcdf3a 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -2134,4 +2134,10 @@ test "@p<terminal>:<address> takes any address over the terminal's lines, select
     try testing.expectEqual(@as(i32, 1), pane.body.cur_col);
     _ = wr(p, root, try std.fmt.bufPrint(&line, "@p{d}:/zzqq/\n", .{serial}));
     try testing.expect(th.logHas(p, "look: no match for regexp"));
+    // A line past its last is a miss, as in a file.
+    const row_before = pane.body.cur_row;
+    _ = wr(p, root, try std.fmt.bufPrint(&line, "@p{d}:999\n", .{serial}));
+    try testing.expect(th.logHas(p, "has no line 999"));
+    try testing.expectEqual(row_before, pane.body.cur_row);
+    try testing.expectEqualStrings("", rd(p, root, 0, 64).bytes);
 }