Dump the rule for ACL formula warnings (#639)

When an ACL formula fails to be run, a warning is printed. However, it is painful to know which formula is concerned by the warning.

ACL: if RHS is null, return false for "in" and "not in"

app/server/lib/GranularAccess.ts

@@ -342,6 +342,7 @@ export class GranularAccess implements GranularAccessForBundle {
   public async inputs(docSession: OptDocSession): Promise<AclMatchInput> {
     return {
       user: await this._getUser(docSession),
+      docId: this._docId
     };
   }