coreutils: Support the name *box as a workaround for *box test suite

Author: oech3

GNUmakefile

@@ -362,8 +362,7 @@ $(BUILDDIR)/.config: $(BASEDIR)/.busybox-config
 
 # Test under the busybox test suite
 $(BUILDDIR)/busybox: busybox-src build-coreutils $(BUILDDIR)/.config
-	@echo -e '#!/bin/sh\nexec env -a coreutils `dirname "$0"`/coreutils "$@"' > "$(BUILDDIR)/busybox.sh"
-	$(INSTALL) -m 755 "$(BUILDDIR)/busybox.sh" "$(BUILDDIR)/busybox"
+	$(INSTALL) -m 755 "$(BUILDDIR)/coreutils" "$(BUILDDIR)/busybox"
 
 prepare-busytest: $(BUILDDIR)/busybox
 	# disable inapplicable tests

src/bin/coreutils.rs

@@ -65,7 +65,8 @@ fn main() {
         if let Some(util) = validation::find_prefixed_util(binary_as_util, utils.keys().copied()) {
             // prefixed util => replace 0th (aka, executable name) argument
             Some(OsString::from(util))
-        } else if binary_as_util.ends_with("utils") {
+        } else if binary_as_util.ends_with("utils") || binary_as_util.ends_with("box") {
+            // todo: Remove support of "*box" from binary
             uucore::set_utility_is_second_arg();
             args.next()
         } else {