Merge topic 'ep-svn-user-pass' into release-3.30

e16f65be15 ExternalProject: Don't add SVN auth args if not set

Acked-by: Kitware Robot <[email protected]>
Acked-by: buildbot <[email protected]>
Merge-request: !9678

Modules/ExternalProject/shared_internal_commands.cmake

@@ -1495,10 +1495,10 @@ function(_ep_add_update_command name)
       set(svn_interactive_args "--non-interactive")
     endif()
     set(svn_user_pw_args "")
-    if(DEFINED svn_username)
+    if(DEFINED _EP_SVN_USERNAME)
       set(svn_user_pw_args ${svn_user_pw_args} "--username=${svn_username}")
     endif()
-    if(DEFINED svn_password)
+    if(DEFINED _EP_SVN_PASSWORD)
       set(svn_user_pw_args ${svn_user_pw_args} "--password=${svn_password}")
     endif()
     if(svn_trust_cert)