UPDATE FMT TO 10.1.0 -> **PLEASE READ!** <-

after pulling this commit, type:

```
git submodule update extern/fmt
```

extern/fmt

@@ -1 +1 @@
-Subproject commit afbcf1e8eafc5d7f27e29c7397f22521eaa33fac
+Subproject commit e57ca2e3685b160617d3d95fcd9e789c4e06ca88

src/log.cpp

@@ -97,7 +97,11 @@ int writeLog(int level, const char* msg, fmt::printf_args args) {
   time_t thisMakesNoSense=time(NULL);
   int pos=(logPosition.fetch_add(1))&TA_LOG_MASK;
 
+#if FMT_VERSION >= 100100
+  logEntries[pos].text.assign(fmt::vsprintf(fmt::basic_string_view<char>(msg),args));
+#else
   logEntries[pos].text.assign(fmt::vsprintf(msg,args));
+#endif
   // why do I have to pass a pointer
   // can't I just pass the time_t directly?!
 #ifdef _WIN32