Fix parameter missing error message

Reviewers: buda, teon.banek, msantl

Reviewed By: teon.banek

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D1436

src/query/interpreter.cpp

@@ -68,7 +68,7 @@ Interpreter::Results Interpreter::operator()(
     auto param_it = params.find(param_pair.second);
     if (param_it == params.end()) {
       throw query::UnprovidedParameterError(
-          fmt::format("Parameter$ {} not provided", param_pair.second));
+          fmt::format("Parameter ${} not provided", param_pair.second));
     }
     ctx.parameters_.Add(param_pair.first, param_it->second);
   }