[compiler-rt] [scudo] Make comment compatible with gcc (PR #106137)

[via llvm-commits]

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@@ -426,7 +426,7 @@ class MapAllocatorCache {
     //  The difference between the retrieved memory chunk and the request
     //  size is at most MaxAllowedFragmentedPages
     //
-    //  / MaxAllowedFragmentedPages * PageSize \
+    //  / MaxAllowedFragmentedPages * PageSize \.
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ChiaHungDuan wrote:

Can we change it to `+-` and `-+` like https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/scudo/standalone/primary64.h#L102 ?

https://github.com/llvm/llvm-project/pull/106137