Fixed msvc conversion warnings

include/spdlog/details/fmt_helper.h

@@ -86,7 +86,7 @@ inline void pad3(int n, fmt::memory_buffer &dest)
     fmt::format_to(dest, "{:03}", n);
 }
 
-inline void pad6(int n, fmt::memory_buffer &dest)
+inline void pad6(size_t n, fmt::memory_buffer &dest)
 {
     if (n > 99999)
     {
@@ -123,11 +123,6 @@ inline void pad6(int n, fmt::memory_buffer &dest)
         dest.push_back('0');
         dest.push_back('0');
     }   
-    else // negatives (unlikely, but just in case let fmt deal with it)
-    {
-        fmt::format_to(dest, "{:06}", n);
-        return;
-    }
     append_int(n, dest);
 }
 

include/spdlog/details/mpmc_blocking_q.h

@@ -59,7 +59,6 @@ public:
             {
                 return false;
             }
-
             q_.pop_front(popped_item);
         }
         pop_cv_.notify_one();
@@ -70,7 +69,6 @@ private:
     std::mutex queue_mutex_;
     std::condition_variable push_cv_;
     std::condition_variable pop_cv_;
-
     spdlog::details::circular_q<T> q_;
 };
 } // namespace details