plpsm - plpgpsm: sqlstate behave fixes

Log Message:
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sqlstate behave fixes

Modified Files:
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plpgpsm/src:
gram.y (r1.29 -> r1.30)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/gram.y.diff?r1=1.29&r2=1.30)
pl_exec.c (r1.25 -> r1.26)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/pl_exec.c.diff?r1=1.25&r2=1.26)