add {} to typecheck_test_outputs.sh

typecheck_test_outputs.sh

@@ -15,7 +15,7 @@ for testcase in * ; do
     # javac relies on word splitting
     # shellcheck disable=SC2046
     javac -proc:only -nowarn $(find . -name "*.java") \
-      || echo "Running javac on ${testcase}/expected issues one or more errors, which are printed above." ; returnval=2
+      || { echo "Running javac on ${testcase}/expected issues one or more errors, which are printed above."; returnval=2; }
     cd ../.. || exit 1
 done
 
@@ -25,4 +25,4 @@ elif [ "${returnval}" = 2 ]; then
   echo "Some expected test outputs do not compile successfully. See the above error output for details."
 fi
 
-exit ${returnval}
+exit ${returnval}