New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/24578#issuecomment-684177274

Comment:
We'll need something like this https://gitlab.alpinelinux.org/alpine/aports/-/commit/6158b4c59fee5d9dee4cbe8e311cb48717dff583 for musl 1.2.1.

We haven't shipped musl 1.2.1 yet, just FYI

---
The main change is:
```diff
--- services/service_manager/sandbox/linux/bpf_renderer_policy_linux.cc.orig    2020-09-01 10:42:06.954267497 +0700
+++ services/service_manager/sandbox/linux/bpf_renderer_policy_linux.cc 2020-09-01 10:42:11.874320977 +0700
@@ -100,9 +100,9 @@
     case __NR_uname:
     case __NR_sched_getparam:
     case __NR_sched_getscheduler:
+    case __NR_sched_setscheduler:
       return Allow();
     case __NR_sched_getaffinity:
-    case __NR_sched_setscheduler:
       return sandbox::RestrictSchedTarget(GetPolicyPid(), sysno);
     case __NR_prlimit64:
       // See crbug.com/662450 and setrlimit comment above.
```