pginstaller - pginst: Zero out a char array before use.

Log Message:
-----------
Zero out a char array before use.

Tags:
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REL8_3_STABLE

Modified Files:
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pginst/ca:
pginstca.c (r1.119.2.1 -> r1.119.2.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/pginstca.c.diff?r1=1.119.2.1&r2=1.119.2.2)