disallow other $* keywords (fix)

Author: gregsdennis

specs/meta/meta.json

@@ -148,7 +148,7 @@
     },
     "patternProperties": {
         "^x-": true,
-        "^(?!(?:\\$id|\\$schema|\\$ref|\\$anchor|\\$dynamicRef|\\$dynamicAnchor|\\$comment|\\$defs)$).*": false
+        "^(?!(?:\\$id|\\$schema|\\$ref|\\$anchor|\\$dynamicRef|\\$dynamicAnchor|\\$comment|\\$defs)$)\\$.*": false
     },
     "$defs": {
         "anchorString": {