sd-radv: use strv_isempty() where we can
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@ -679,9 +679,8 @@ _public_ int sd_radv_set_dnssl(sd_radv *ra, uint32_t lifetime,
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assert_return(ra, -EINVAL);
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if (!search_list || *search_list == NULL) {
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if (strv_isempty(search_list)) {
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ra->dnssl = mfree(ra->dnssl);
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return 0;
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}
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