[lld] Incorrect handling of `_LINK_`

In https://github.com/llvm/llvm-project/commit/95fe8543325a, the commit message said `_LINK_` should be *appended* to the command line.

But the actual implementation *preprended* it. This is still the case for now: https://github.com/llvm/llvm-project/blob/8459fed60e363aa3a01514975038773652a5fbac/lld/COFF/DriverUtils.cpp#L929

Start in lld/COFF/DriverUtils.cpp around line 929 and compare the implementation with commit 95fe8543325a. Verify the `_LINK_` command-line ordering and confirm that it is appended as described by the commit message.

Written by the indexing model from the issue text.