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Update README.md

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Co-Authored-By: Ralf Jung <post@ralfj.de>
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Oliver Scherer
2019-12-10 14:47:28 +01:00
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@@ -171,7 +171,7 @@ Several `-Z` flags are relevant for Miri:
sets this flag per default.
* `-Zmir-emit-retag` controls whether `Retag` statements are emitted. Miri
enables this per default because it is needed for validation.
* `-Zmiri-track-pointer-tag` aborts interpretation with a backtrace when the
* `-Zmiri-track-pointer-tag=<tag>` aborts interpretation with a backtrace when the
given pointer tag is popped from a borrow stack (which is where the tag
becomes invalid and any future use of it will error anyway). This helps you
in finding out why UB is happening and where in your code would be a good