pg-migrator - pg_migrator: Remove needless variable initializations.

Log Message:
-----------
Remove needless variable initializations.

Adjust code to be clearer.

Modified Files:
--------------
    pg_migrator/src:
        controldata.c (r1.11 -> r1.12)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/controldata.c.diff?r1=1.11&r2=1.12)
        file.c (r1.13 -> r1.14)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/file.c.diff?r1=1.13&r2=1.14)
        info.c (r1.13 -> r1.14)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/info.c.diff?r1=1.13&r2=1.14)
        option.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/option.c.diff?r1=1.18&r2=1.19)
        pg_migrator.c (r1.27 -> r1.28)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/pg_migrator.c.diff?r1=1.27&r2=1.28)
        pg_migrator.h (r1.25 -> r1.26)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/pg_migrator.h.diff?r1=1.25&r2=1.26)
        relfilenode.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/relfilenode.c.diff?r1=1.18&r2=1.19)
        server.c (r1.14 -> r1.15)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/server.c.diff?r1=1.14&r2=1.15)
        version.c (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/pg_migrator/src/version.c.diff?r1=1.6&r2=1.7)