Script fails when --db-host and other --db options are used, because of error in the code. Patch below:

+++ updatesearchindexsolr.php (working copy)
@@ -449,7 +449,7 @@
{
if ( !empty( $this->Options[$param] ) )
{

• $optionString .= ' -' . $param . '=' . escapeshellarg( $this>Options['db-host'] );
  + $paramString .= ' -' . $param . '=' . escapeshellarg( $this>Options[$param] );
  }
  }

  Steps to reproduce

  :$ php extension\ezfind\bin\php\updatesearchindexsolr.php -d --db-host=my_db --db-user=my_user --db-password=my_pwd --db-database=my_db -s my_siteaccess --clean --php-exec=php --db-type=ezmysql