Обсуждение: pgsql: Fix manpages related to SPI functions.

Log Message:
-----------
Fix manpages related to SPI functions.

This patch adds declaration so that they end up in section 3, and adds
them to the Makefiles to install them.

Also, some synopses needed reflowing so that they look nice in 80-column
terminals.

Modified Files:
--------------
    pgsql/doc:
        Makefile (r1.37 -> r1.38)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/Makefile?r1=1.37&r2=1.38)
    pgsql/doc/src:
        Makefile (r1.35 -> r1.36)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/Makefile?r1=1.35&r2=1.36)
    pgsql/doc/src/sgml:
        Makefile (r1.120 -> r1.121)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/Makefile?r1=1.120&r2=1.121)
        spi.sgml (r1.64 -> r1.65)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/spi.sgml?r1=1.64&r2=1.65)