Fix warning - extra ';' for -Wextra-semi (#3198)

Signed-off-by: hydai <z54981220@gmail.com>

bench/async_bench.cpp

@@ -160,7 +160,7 @@ void bench_mt(int howmany, std::shared_ptr<spdlog::logger> logger, int thread_co
 
     for (auto &t : threads) {
         t.join();
-    };
+    }
 
     auto delta = high_resolution_clock::now() - start;
     auto delta_d = duration_cast<duration<double>>(delta).count();

bench/bench.cpp

@@ -181,7 +181,7 @@ void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, size_t thread_co
 
     for (auto &t : threads) {
         t.join();
-    };
+    }
 
     auto delta = high_resolution_clock::now() - start;
     auto delta_d = duration_cast<duration<double>>(delta).count();

example/example.cpp

@@ -266,7 +266,7 @@ void multi_sink_example() {
 struct my_type {
     int i = 0;
     explicit my_type(int i)
-        : i(i){};
+        : i(i){}
 };
 
 #ifndef SPDLOG_USE_STD_FORMAT  // when using fmtlib

include/spdlog/sinks/callback_sink.h

@@ -27,7 +27,7 @@ public:
 
 protected:
     void sink_it_(const details::log_msg &msg) override { callback_(msg); }
-    void flush_() override{};
+    void flush_() override{}
 
 private:
     custom_log_callback callback_;

include/spdlog/sinks/msvc_sink.h

@@ -32,7 +32,7 @@ class msvc_sink : public base_sink<Mutex> {
 public:
     msvc_sink() = default;
     msvc_sink(bool check_debugger_present)
-        : check_debugger_present_{check_debugger_present} {};
+        : check_debugger_present_{check_debugger_present} {}
 
 protected:
     void sink_it_(const details::log_msg &msg) override {