-$ $SG_TEST_EXENV gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little64 --log=root.fmt:%m%n $ARGS
-> Read from file ./gras/datadesc/datadesc.little64
+! setenv GRAS_NO_WARN_EXPERIMENTAL=1
+$ $SG_TEST_EXENV gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little64 --log=test.thres:verbose --log=structs.thres:info "--log=root.fmt:%m%n"
+> Read from file datadesc.little64
+> This file was generated on little64 (4)