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Replace is_function with function_exists
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@ -158,7 +158,7 @@ function relayd_configure($kill_first=false) {
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// have to do this until every call to filter.inc is
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// require_once() instead of require().
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if (!is_function('filter_expand_alias_array')) {
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if (!function_exists('filter_expand_alias_array')) {
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require_once("filter.inc");
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}
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