Grep with no hit says grep: no match, and a pane directory that is not there is passed over

Grep walks every pane's directory; one not there (a scratch named into a
directory not made yet) failed the whole search with `file not found`.
Such a root is passed over now, and a search that finds nothing says
`grep: no match` and opens no empty +Search.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/src/builtins.zig b/src/builtins.zig
index 3f4a680c..59fc140d 100644
--- a/src/builtins.zig
+++ b/src/builtins.zig
@@ -1339,7 +1339,8 @@ pub const Grep = struct {
     pub fn run(c: Ctx) void {
         const pat = std.mem.trim(u8, c.arg orelse "", " \t\r\n");
         if (pat.len > 0) {
-            _ = look.runSearch(c.p, c.id, pat, .grep, .top, true) catch |err| c.p.reportError(c.id, "grep", err);
+            const rows = look.runSearch(c.p, c.id, pat, .grep, .top, false) catch |err| return c.p.reportError(c.id, "grep", err);
+            if (rows == 0) c.p.reportFailure(c.id, "grep: no match");
             return;
         }
         c.p.startPrompt(c.pane, &c.pane.body, .{ .search = config.grep_marker });