complier: fix typo in comment (#6747)

diff --git a/compiler/src/java_plugin/cpp/java_generator.cpp b/compiler/src/java_plugin/cpp/java_generator.cpp
index 969d711..db914ce 100644
--- a/compiler/src/java_plugin/cpp/java_generator.cpp
+++ b/compiler/src/java_plugin/cpp/java_generator.cpp
@@ -1237,7 +1237,7 @@
   }
   PrintImports(&printer);
 
-  // Package std::string is used to fully qualify method names.
+  // Package string is used to fully qualify method names.
   vars["Package"] = service->file()->package();
   if (!vars["Package"].empty()) {
     vars["Package"].append(".");