[COMMITTERS] pginstaller - pginst: Correctly check for NULL return value when

[User Mha]

Log Message:
-----------
Correctly check for NULL return value when checking the environment for SESSIONNAME to 
determine if a Terminal Services session is used.

This fixes the crash-before-install on Windows 2000 Professional and NT4 (!= TSE).

Modified Files:
--------------
    pginst/ca:
        pginstca.c (r1.34 -> r1.35)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/pginstca.c.diff?r1=1.34&r2=1.35)

---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
    (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])