Change log of import function to be consistent (#3656)

core/iwasm/common/wasm_native.c

@@ -230,7 +230,7 @@ wasm_native_resolve_symbol(const char *module_name, const char *field_name,
 #if WASM_ENABLE_WAMR_COMPILER == 0
                 /* Output warning except running aot compiler */
                 LOG_WARNING("failed to check signature '%s' and resolve "
-                            "pointer params for import function (%s %s)\n",
+                            "pointer params for import function (%s, %s)\n",
                             signature, module_name, field_name);
 #endif
                 return NULL;