Ensure all files are covered by go fmt

The current approach was only running go fmt on the top-level *.go
files.

Signed-off-by: Ivan Valdes <ivan@vald.es>

scripts/test.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 
-FMT="*.go"
-
 echo "Running tests..."
 go test -v -cover -cpu 1,2,4 ./...
 go test -v -cover -cpu 1,2,4 -race ./...
 
 echo "Checking gofmt..."
-fmt_res=$(gofmt -l -s $FMT)
+# We utilize 'go fmt' to find all files suitable for formatting,
+# but reuse full power gofmt to perform just RO check.
+fmt_res=$(go fmt -n ./... | sed 's| -w | -d |g' | sh)
 if [ -n "${fmt_res}" ]; then
   echo -e "gofmt checking failed:\n${fmt_res}"
   exit 1