std.debug.lockStderrWriter: also return ttyconf

`std.Io.tty.Config.detect` may be an expensive check (e.g. involving
syscalls), and doing it every time we need to print isn't really
necessary; under normal usage, we can compute the value once and cache
it for the whole program's execution. Since anyone outputting to stderr
may reasonably want this information (in fact they are very likely to),
it makes sense to cache it and return it from `lockStderrWriter`. Call
sites who do not need it will experience no significant overhead, and
can just ignore the TTY config with a `const w, _` destructure.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/link.zig b/src/link.zig
index 7cf8e5c1a6..5c4354411b 100644
--- a/src/link.zig
+++ b/src/link.zig
@@ -2215,7 +2215,7 @@ fn resolvePathInputLib(
             var error_bundle = try wip_errors.toOwnedBundle("");
             defer error_bundle.deinit(gpa);
 
-            error_bundle.renderToStdErr(color.renderOptions());
+            error_bundle.renderToStdErr(.{}, color);
 
             std.process.exit(1);
         }