make release fixes

stm32/Makefile

@@ -266,7 +266,7 @@ ifeq ($(PUBLISHED_BIN),)
 	@echo "Need published binary for: $(VERSION_STRING)"
 	@echo ""
 	@echo "Code in repro-build.sh should have placed it there already!?"
-	false
+	@echo ""
 else
 	@echo Comparing against: $(PUBLISHED_BIN)
 	test -n "$(PUBLISHED_BIN)" -a -f $(PUBLISHED_BIN)

stm32/repro-build.sh

@@ -40,10 +40,10 @@ else
     # fetch a copy of the required binary
     PUBLISHED_BIN=`grep -F $VERSION_STRING signatures.txt | dd bs=66 skip=1`
     if [ -z "$PUBLISHED_BIN" ]; then
-        echo "Cannot determine release date / full file name. Stop."
-        exit 1
+        echo "No existing signature for this binary version. Nothing to check against."
+    else
+        wget -S https://coldcard.com/downloads/$PUBLISHED_BIN
     fi
-    wget -S https://coldcard.com/downloads/$PUBLISHED_BIN
 fi
 cd ../stm32