QA output created by 448
error cases ...
bad variable
NO_SUCH_VAR -> 
exit status=0

bad $PCP_CONF
FATAL PCP ERROR: could not open config file "/no/such/file" : No such file or directory
You may need to set PCP_CONF or PCP_DIR in your environment.
PCP_BIN_DIR -> exit status=1

bad $PCP_DIR
FATAL PCP ERROR: could not open config file "/no/such/directory/etc/pcp.conf" : No such file or directory
You may need to set PCP_CONF or PCP_DIR in your environment.
PCP_BIN_DIR -> exit status=1

all vars in pcp.conf ... report only errors
