Merge bitcoin/bitcoin#21736: doc: Fix doxygen comment silent merge conflict in descriptor.cpp

e5faec65bd doc: Fix doxygen comment silent merge conflict in descriptor.cpp (W. J. van der Laan)

Pull request description:

  It looks like #21238 introduced a silent merge conflict in the documentation, which fails with `-Wdocumentation` in the CI.

  (please merge only if CI passes)

ACKs for top commit:
  ajtowns:
    ACK e5faec65bd -- fixed it for me
  meshcollider:
    ACK e5faec65bd modulo CI

Tree-SHA512: b07d50fd12aa7c239a92aad8ef29f4e88583c3ce701ebedba7c426aac4981c79113adc4670b7d055ab9535a28bdc3f9a30e6ca1b1ed0d7b9a333a3d9c4b40d8a

src/script/descriptor.cpp

@@ -495,7 +495,7 @@ protected:
      *  This function is invoked once by ExpandHelper.
      *
      *  @param pubkeys The evaluations of the m_pubkey_args field.
-     *  @param script The evaluations of m_subdescriptor_args (one for each m_subdescriptor_args element).
+     *  @param scripts The evaluations of m_subdescriptor_args (one for each m_subdescriptor_args element).
      *  @param out A FlatSigningProvider to put scripts or public keys in that are necessary to the solver.
      *             The origin info of the provided pubkeys is automatically added.
      *  @return A vector with scriptPubKeys for this descriptor.