Re: [PATCH 04/10] t0027: use $ZERO_OID

> Nothing wrong with the patch.
> There is, however, a trick in t0027 to transform the different IDs back to a bunch of '0'.
> The content of the file use only uppercase letters, and all lowercase ad digits
> are converted like this:
> 
> compare_ws_file () {
> 	pfx=$1
> 	exp=$2.expect
> 	act=$pfx.actual.$3
> 	tr '\015\000abcdef0123456789' QN00000000000000000 <"$2" >"$exp" &&
> 	tr '\015\000abcdef0123456789' QN00000000000000000 <"$3" >"$act" &&
> 	test_cmp "$exp" "$act" &&
> 	rm "$exp" "$act"
> }
> 
> In the long term the 'tr' may need an additional 'sed' expression.