A builtin's Verbose announcement is the message row's alone, never logged

With Verbose on by default, /log filled with msg - DumpDir, msg 4 Grep and the like, with machinery to take an announcement back out when its builtin failed or said something itself. A msg record is now only something said; the take-back machinery goes with it.

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

1 files changed, 5 insertions, 6 deletions

diff --git a/src/ninep/cols.zig b/src/ninep/cols.zig
index aae6d364..6b59f9e5 100644
--- a/src/ninep/cols.zig
+++ b/src/ninep/cols.zig
@@ -401,19 +401,18 @@ test "tagexec runs a word as a click in the workspace tag; exec files read back
     try testing.expectEqual(tree.Status.ok, th.look_up(p, tree.root, "tagexec").reply.status);
     try testing.expectEqual(tree.Status.ok, th.wr(p, tagexec, "Newcol\n").reply.status);
     try testing.expectEqual(@as(usize, 2), p.ncol);
-    // What it says is the session's (Newcol announcing itself); a pane's
-    // word such as Msg is refused there.
-    try testing.expect(th.logHas(p, "msg - Newcol\n"));
+    // Its announcement is the message row's, never logged; a pane's word
+    // such as Msg is refused there.
+    try testing.expect(!th.logHas(p, "msg - Newcol\n"));
     try testing.expectEqual(E.INVAL, th.wr(p, tagexec, "Msg from the top\n").errno());
-    // A column's exec makes a pane there, reads it back, and its Msg is
-    // the session's too.
+    // A column's exec makes a pane there and reads it back.
     const right = layout.columnSerial(p, 1);
     try testing.expectEqual(tree.Status.ok, th.wr(p, Node.ofCol(right, .exec), "New\n").reply.status);
     const made = p.panes[p.col_panes[1][0]].?.serial;
     var want: [16]u8 = undefined;
     try testing.expectEqualStrings(try std.fmt.bufPrint(&want, "{d}\n", .{made}), th.rd(p, Node.ofCol(right, .exec), 0, 64).bytes);
     try testing.expectEqualStrings(try std.fmt.bufPrint(&want, "{d}\n", .{made}), th.rd(p, tagexec, 0, 64).bytes);
-    try testing.expect(th.logHas(p, "msg - New\n"));
+    try testing.expect(!th.logHas(p, "msg - New\n")); // announced on the message row only
 }
 
 test "a word run from the workspace's or a column's tag runs in the session's directory, a pane's in its own" {