Iterate on Windows regression-testing (#478)

* Support file-redirects in regtest for Windows
* move winfails aside
* iterate on PATH settings

.github/workflows/go.yml

@@ -29,4 +29,4 @@ jobs:
       # In the event of needing to debug failures you can modify `./mlr regtest` verbosity
       # using `-v`, `-vv`, or `-vvv`. Commit changes to this file and re-push to GitHub
       # and let the GitHub Actions re-run.
-      run: cd go && go test -v ./... && ./mlr regtest -m ./mlr -s 5
+      run: cd go && go test -v ./... && ./mlr regtest -s 5

go/README.md

@@ -1,6 +1,6 @@
 # Quickstart
 
-A TL;DR for anyone wanting to compile and run Miller:
+A TL;DR for anyone wanting to compile and run the Go port of Miller:
 
 * `go build mlr.go` -- produces the `mlr` executable
 * `go test ./...` -- runs a relatively small number of unit tests

go/build

@@ -14,7 +14,7 @@ echo
 go test ./...
 
 echo
-mlr regtest reg-test/cases reg-test/cases-pending $verbose
+mlr regtest reg-test/cases reg-test/cases-pending-windows $verbose
 
 echo
 ./reg-test/run -n $verbose