Log Message:-----------add PQsendf and PQsendvf
Modified Files:-------------- libpqtypes/src: exec.c (r1.20 -> r1.21) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/libpqtypes/libpqtypes/src/exec.c?r1=1.20&r2=1.21)
