Thread: pgsql: Use snprintf from libpgport in ecpg compatlib.

Log Message:
-----------
Use snprintf from libpgport in ecpg compatlib. Required since
we restricted exports from ecpglib.

Modified Files:
--------------
    pgsql/src/interfaces/ecpg/compatlib:
        informix.c (r1.50 -> r1.51)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/compatlib/informix.c?r1=1.50&r2=1.51)
    pgsql/src/tools/msvc:
        Mkvcbuild.pm (r1.19 -> r1.20)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/Mkvcbuild.pm?r1=1.19&r2=1.20)