fix & update

src/args.rs

@@ -6,7 +6,7 @@ use structopt::StructOpt;
 /// Parse size argument as bytes
 /// e.g. 10GB, 10GiB, etc.
 fn parse_bytes(src: &str) -> Result<Byte, &'static str> {
-    Byte::from_str(src).map_err(|_| "Invalid image size")
+    Byte::parse_str(src, false).map_err(|_| "Invalid image size")
 }
 
 #[derive(StructOpt)]