diff --numstat: show binary with '-' to match "apply --numstat"
diff --numstat: show binary with '-' to match "apply --numstat"

This changes the --numstat output for binary files from "0 0" to
"- -" to match what "apply --numstat" does.

Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git