buildsys: add 'make lint'

for now we only activate lints for code that is "outright
wrong"

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

Makefile

@@ -97,6 +97,10 @@ cargo-build:
 
 $(COMPILED_BINS): cargo-build
 
+.PHONY: lint
+lint:
+	cargo clippy -- -A clippy::all -D clippy::correctness
+
 install: $(COMPILED_BINS)
 	install -dm755 $(DESTDIR)$(BINDIR)
 	$(foreach i,$(USR_BIN), \