p Check the marshaling facilities (trying to read the result of linux/x86)
-$ gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little32_4 --log=root.fmt:%m%n
+$ gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little32_4 "--log=root.fmt:%m%n"
> Read from file datadesc.little32_4
> ---- Test on integer ----
> ---- Test on float ----