revert some changes made by mistake

CMakeLists.txt

@@ -33,7 +33,7 @@ endif ()
 # Compiler config
 # ---------------------------------------------------------------------------------------
 if (NOT CMAKE_CXX_STANDARD)
-    set(CMAKE_CXX_STANDARD 20)
+    set(CMAKE_CXX_STANDARD 11)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
 endif ()
 

example/example.cpp

@@ -23,14 +23,13 @@ void custom_flags_example();
 
 #include "spdlog/spdlog.h"
 #include "spdlog/cfg/env.h" // support for loading levels from the environment variable
-#include "spdlog/fmt/compile.h"
 
 int main(int, char *[])
 {
     // Log levels can be loaded from argv/env using "SPDLOG_LEVEL"
     load_levels_example();
 
-    spdlog::info(FMT_COMPILE("Welcome to spdlog version {}.{}.{} {:d} !"), SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH, "SS");
+    spdlog::info("Welcome to spdlog version {}.{}.{}  !", SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH);
 
     spdlog::warn("Easy padding in numbers like {:08d}", 12);
     spdlog::critical("Support for int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}", 42);