CI fixes

Author: franzpoeschel

include/openPMD/Datatype.hpp

@@ -790,7 +790,7 @@ Datatype stringToDatatype(const std::string &s);
  * @param dt Datatype to output
  * @return Reference to the stream
  */
-std::ostream &operator<<(std::ostream &, openPMD::Datatype const &);
+std::ostream &operator<<(std::ostream &os, openPMD::Datatype const &dt);
 
 template <typename T>
 constexpr auto datatypeIndex() -> size_t

include/openPMD/IO/AbstractIOHandler.hpp

@@ -332,7 +332,8 @@ class AbstractIOHandler
      * @param params Parsed flush parameters
      * @return Future indicating completion state
      */
-    virtual std::future<void> flush_impl(internal::ParsedFlushParams &) = 0;
+    virtual std::future<void>
+    flush_impl(internal::ParsedFlushParams &params) = 0;
 }; // AbstractIOHandler
 
 } // namespace openPMD