Temp reenable of broken demos

For debugging purposes as the only way I can investigate is by running
the CI

.github/workflows/ci.yml

@@ -30,14 +30,6 @@ jobs:
           sudo apt-get update
           sudo apt-get install make chocolate-doom python3 python3-yaml
 
-      - name: Patch out broken demos
-        run: |
-          # These work in Chocolate Doom HEAD but don't seem to currently
-          # work in the older version in ubuntu-latest.
-          # TODO: Reenable these.
-          grep -v 30av-25337 < demos.txt | grep -v pl2all1.txt > new-demos.txt
-          mv new-demos.txt demos.txt
-
       - name: Run checks
         run: |
           make check

makerules

@@ -78,7 +78,7 @@ class Rule:
 
     def command(self):
         args = self.game_arguments()
-        return "$(SOURCE_PORT) " + " ".join(args) + " >/dev/null 2>&1"
+        return "$(SOURCE_PORT) " + " ".join(args) + " >/dev/null"
 
     def rule_output(self):
         result = "%s: %s\n" % (