nit: hide echo

ci/shellcheck.sh

@@ -4,9 +4,9 @@
 set -e
 
 cd "$(dirname "$0")/.."
-
-set -x
-find . -name "*.sh" \
+(
+  set -x
+  find . -name "*.sh" \
       -not -regex ".*/ci/semver_bash/.*" \
       -not -regex ".*/.cargo/.*" \
       -not -regex ".*/node_modules/.*" \
@@ -14,5 +14,5 @@ find . -name "*.sh" \
       -print0 \
     | xargs -0 \
         ci/docker-run.sh koalaman/shellcheck --color=always --external-sources --shell=bash
-
+)
 echo --- ok