Fix find command

Author: jwiegley

.github/workflows/ert.yml

@@ -15,4 +15,9 @@ jobs:
       - name: Run ERT tests
         run: |
           cd test
-          emacs -Q -L .. -L . $(find .. -mindepth 1 -maxdepth 2 \( -name '.*.el' -prune -o -name '*.el' -type f -printf ' -l %p' \)) -l ert --batch -f ert-run-tests-batch-and-exit
+          emacs -Q -L .. -L . \
+            $(find .. -mindepth 1 -maxdepth 1 \
+              \( -name '.*.el' -prune -o -name '*.el' -type f -printf ' -l %p' \)) \
+            $(find . -mindepth 1 -maxdepth 1 \
+              \( -name '.*.el' -prune -o -name '*.el' -type f -printf ' -l %p' \)) \
+            -l ert --batch -f ert-run-tests-batch-and-exit