Fix single quotes in executable comments.

unibuild-package/unibuild-package/unibuild-deb.make

@@ -125,10 +125,10 @@ ifneq ($(SOURCE_TARBALL),)
 	-# Copy the original tarball without modification
 	cp $(SOURCE_TARBALL) $(PRODUCTS_DIR)/$(ORIG_TARBALL)
 else
-	-# Build from the unpacked sources since there wasn't one
+	-# Build from the unpacked sources since one did not exist
 	(cd '$@' && tar cf - .) | (cd $(BUILD_ORIG_PACKAGE_DIR) && tar xpf -)
 	-# Debian packaging guidelines dictate that the "orig" tarball
-	-# must not change if the software doesn't, so remove any
+	-# must not change if the software does not, so remove any
 	-# packaging information before creating it.
 	find '$(BUILD_ORIG_PACKAGE_DIR)' -name 'unibuild-packaging' -type d | xargs rm -rf
 	(cd $(BUILD_ORIG_DIR) && tar cf - $(SOURCE_VERSION) | gzip -n ) > $(PRODUCTS_DIR)/$(ORIG_TARBALL)