pgsql: Fixed bug in parsing of #line statement in declare section.

Log Message:
-----------
Fixed bug in parsing of #line statement in declare section.

Modified Files:
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pgsql/src/interfaces/ecpg:
ChangeLog (r1.283 -> r1.284)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ChangeLog.diff?r1=1.283&r2=1.284)
pgsql/src/interfaces/ecpg/preproc:
pgc.l (r1.134 -> r1.135)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/pgc.l.diff?r1=1.134&r2=1.135)
preproc.y (r1.304 -> r1.305)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/preproc.y.diff?r1=1.304&r2=1.305)