Fix lint-old-quo-usage script and usage

Author: ajayesivan

Makefile

@@ -311,7 +311,7 @@ endef
 lint: export TARGET := clojure
 lint: ##@test Run code style checks
 	@sh scripts/lint-re-frame-in-quo-components.sh && \
-	sh scripts/lint-old-quo-usage.sh && \
+	sh scripts/lint-old-quo-usage.sh \
 	clj-kondo --config .clj-kondo/config.edn --cache false --fail-level error --lint src && \
 	ALL_CLOJURE_FILES=$(call find_all_clojure_files) && \
 	zprint '{:search-config? true}' -sfc $$ALL_CLOJURE_FILES && \

scripts/lint-old-quo-usage.sh

@@ -1,6 +1,8 @@
 #!/usr/bin/env sh
 
-QUO_USAGES=$(grep -r -E '\[quo\.[^ ]* :as' --include '*.cljs' --include '*.clj' './src/status_im2')
+set -euo pipefail
+
+QUO_USAGES=$(grep -r -E '\[quo\.[^ ]* :as' --include '*.cljs' --include '*.clj' './src/status_im2' || true)
 
 echo -e "\nChecking 'status_im2' namespace for 'quo' namespace usage."