pgrpm - pgrpm: - check rpmdsNew and rpmfiNew don't return NULL ptr

Log Message:
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- check rpmdsNew and rpmfiNew don't return NULL ptr

Modified Files:
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pgrpm:
pgheader.c (r1.22 -> r1.23)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgrpm/pgrpm/pgheader.c.diff?r1=1.22&r2=1.23)