[llvm] [lld] [Pass] Add hyphen to some pass names (PR #74287)

[via llvm-commits]

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@@ -159,7 +159,7 @@ non-obvious ways.  Here are some hints and tips:
 
 * ``bugpoint`` can produce IR which contains long names. Run ``opt
   -passes=metarenamer`` over the IR to rename everything using easy-to-read,
-  metasyntactic names. Alternatively, run ``opt -passes=strip,instnamer`` to
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paperchalice wrote:

Keep `instnamer`?

https://github.com/llvm/llvm-project/pull/74287