plpsm - plpgpsm: db2 multiassigment statement

Log Message:
-----------
db2 multiassigment statement

Modified Files:
--------------
plpgpsm/src:
gram.y (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/gram.y.diff?r1=1.15&r2=1.16)
pl_exec.c (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/pl_exec.c.diff?r1=1.13&r2=1.14)
pl_funcs.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/pl_funcs.c.diff?r1=1.2&r2=1.3)
plpgpsm.h (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/plpgpsm.h.diff?r1=1.13&r2=1.14)