dongshengyuan
756399c79e
shallow_join_strv() shallow-copies the first strv into a temporary array, then uses strv_contains() while appending entries from the second strv. That helper requires a NUL-terminated strv. Keep the temporary array terminated before each lookup. After an append, the previous terminator is overwritten, so postponing the NULL write until after the loop would let the next strv_contains() scan past the initialized entries. This is a correctness fix, not an optimization: it avoids a potential out-of-bounds read when deduplicating the second strv.
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