Merge topic 'doc-cpack-dpkg-shlibdeps-l' into release-3.20

cf9a7187 Help: Fix CPACK_DEBIAN_PACKAGE_SHLIBDEPS_PRIVATE_DIRS documentation

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5835

Help/cpack_gen/deb.rst

@@ -347,7 +347,7 @@ List of CPack DEB generator specific variables:
  .. versionadded:: 3.20
 
  May be set to a list of directories that will be given to ``dpkg-shlibdeps``
- via its ``-d`` option. These will be searched by ``dpkg-shlibdeps`` in order
+ via its ``-l`` option. These will be searched by ``dpkg-shlibdeps`` in order
  to find private shared library dependencies.
 
  * Mandatory : NO