drop strcpy in favor of raw sha1_to_hex
In some cases where we strcpy() the result of sha1_to_hex(), there's no need; the result goes directly into a printf statement, and we can simply pass the return value from sha1_to_hex() directly. When this code was originally written, sha1_to_hex used a single buffer, and it was not safe to use it twice within a single expression. That changed as of dcb3450f (sha1_to_hex() usage cleanup, 2006-05-03), but this code was never updated. History-dug-by: NEric Sunshine <sunshine@sunshineco.com> Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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