getbinariesfromquay: Remove - separating arch from variant

This naming scheme seemed weird to me so I went looking around at other
Go projects. None of the projects that I found that had multi-arch
release binaries used this scheme, instead they just append the variant
to arch. Appending the variant to the arch also makes a lot of sense if
you think of the naming schme as $binary-$os-$cpu and
$cpu=$arch$variant. Keeping arch and variant together as $cpu is also
more consistent, and consitency is great :D.

Signed-off-by: Manuel Mendez <mmendez@equinix.com>

cmd/getbinariesfromquay/main.go

@@ -88,7 +88,7 @@ func main() {
 		}
 		if arch.Platform.Variant != "" {
 			syss.VariantChoice = arch.Platform.Variant
-			imgDir = imgDir + "-" + arch.Platform.Variant
+			imgDir = imgDir + arch.Platform.Variant
 		}
 		archImg, err := docker.ImageFromName(ctx, syss, imageR)
 		if err != nil {