patch for buffer overrun with sequences

Applied.

Hi,

The buffer overrun while creating sequences turns out to be
a read access overrun. For the sake of doing things properly
here is a patch which fixes it.

This patch is for the file backend/commands/sequence.c.

87a88

NameData name;

113c114,115
< value[i - 1] = PointerGetDatum(seq->seqname);
---

namestrcpy(&name, seq->seqname);
value[i - 1] = NameGetDatum(&name);

With regards from Maurice.

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