Fix warning string

Author: christophfroehlich

parameter_traits/include/parameter_traits/parameter_traits.hpp

@@ -32,13 +32,15 @@
 #include <rsl/algorithm.hpp>
 #include <tl_expected/expected.hpp>
 
-#define PARAMETER_TRAITS_HEADER_DEPRECATION This header is obsolete, \
-  please include "rsl/algorithm.hpp" for rsl::contains and rsl::is_unique, \
-  and "tl_expected/expected.hpp" for tl::expected.
 #ifdef _MSC_VER
-#pragma message(PARAMETER_TRAITS_HEADER_DEPRECATION)
+#pragma message( \
+    "This header is obsolete, \
+  please include \"rsl/algorithm.hpp\" for rsl::contains and rsl::is_unique, \
+  and \"tl_expected/expected.hpp\" for tl::expected.")
 #else
-#warning PARAMETER_TRAITS_HEADER_DEPRECATION
+#warning This header is obsolete, \
+  please include "rsl/algorithm.hpp" for rsl::contains and rsl::is_unique, \
+  and "tl_expected/expected.hpp" for tl::expected.
 #endif
 
 namespace parameter_traits {