fix git grep

.gitea/workflows/gentoo-utils.yml

@@ -193,5 +193,9 @@ jobs:
       - name: grep for patterns
         # negate git grep ret code because 1 means no findings
         run: |
-          git --no-pager grep -E 'todo!|dbg!' -- '*.rs' && echo "exit 1" || echo "exit 0"
+          if git --no-pager grep -E 'todo!|dbg!' -- '*.rs'; then
+            exit 1
+          else
+            exit 0
+          fi