[compiler-rt] [scudo] allocation_ring_buffer_size <= 0 disables buffer (PR #71791)

[via llvm-commits]

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@@ -886,7 +886,7 @@ class Allocator {
 
   void setTrackAllocationStacks(bool Track) {
     initThreadMaybe();
-    if (getFlags()->allocation_ring_buffer_size == 0) {
+    if (getFlags()->allocation_ring_buffer_size < 1) {
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ChiaHungDuan wrote:

Can we do this with `<= 0`? I think the intention will be more clear

In addition, if we can make `allocation_ring_buffer_size` unsigned, `== 0` will be better

https://github.com/llvm/llvm-project/pull/71791