diff --git a/include/spdlog/common.h b/include/spdlog/common.h
index 04da10a6..97edd1d5 100644
--- a/include/spdlog/common.h
+++ b/include/spdlog/common.h
@@ -100,17 +100,21 @@ enum class async_overflow_policy
 //
 // Log exception
 //
-namespace details { namespace os {
-	std::string errno_str(int err_num);	
-}}
+namespace details
+{
+namespace os
+{
+std::string errno_str(int err_num);
+}
+}
 class spdlog_ex : public std::exception
 {
 public:
     spdlog_ex(const std::string& msg) :_msg(msg) {}
-	spdlog_ex(const std::string& msg, int last_errno)
-	{
-		_msg = msg + ": " + details::os::errno_str(last_errno);
-	}
+    spdlog_ex(const std::string& msg, int last_errno)
+    {
+        _msg = msg + ": " + details::os::errno_str(last_errno);
+    }
     const char* what() const SPDLOG_NOEXCEPT override
     {
         return _msg.c_str();
diff --git a/include/spdlog/details/async_logger_impl.h b/include/spdlog/details/async_logger_impl.h
index 26a7ab05..e0af1985 100644
--- a/include/spdlog/details/async_logger_impl.h
+++ b/include/spdlog/details/async_logger_impl.h
@@ -72,6 +72,6 @@ inline void spdlog::async_logger::_set_pattern(const std::string& pattern)
 
 
 inline void spdlog::async_logger::_sink_it(details::log_msg& msg)
-{    
+{
     _async_log_helper->log(msg);
 }
diff --git a/include/spdlog/details/logger_impl.h b/include/spdlog/details/logger_impl.h
index 9fe03e63..751bb2cf 100644
--- a/include/spdlog/details/logger_impl.h
+++ b/include/spdlog/details/logger_impl.h
@@ -65,7 +65,7 @@ inline void spdlog::logger::log(level::level_enum lvl, const char* fmt, const Ar
     {
         throw spdlog::spdlog_ex(std::string("format error in \"") + fmt + "\": " + ex.what());
     }
-    
+
     _sink_it(log_msg);
 
 }
@@ -87,7 +87,7 @@ inline void spdlog::logger::log(level::level_enum lvl, const T& msg)
     if (!should_log(lvl)) return;
 
     details::log_msg log_msg(&_name, lvl);
-    log_msg.raw << msg;    
+    log_msg.raw << msg;
     _sink_it(log_msg);
 
 }
diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index ff9d35ff..8c50907b 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -254,25 +254,25 @@ inline std::string filename_to_str(const filename_t& filename)
 
 // Return errno string (thread safe)
 inline std::string errno_str(int err_num)
-{	
-	char buf[256];	
-	constexpr auto buf_size = sizeof(buf);
-			
-#ifdef _WIN32		
-	if(strerror_s(buf, buf_size, err_num) == 0)
-		return std::string(buf);
-	else
-		return "Unkown error";
+{
+    char buf[256];
+    constexpr auto buf_size = sizeof(buf);
 
-#elif (_POSIX_C_SOURCE >= 200112L) && ! _GNU_SOURCE // posix version		
-	if (strerror_r(err_num, buf, buf_size) == 0)
-		return std::string(buf);
-	else
-		return "Unkown error";
+#ifdef _WIN32
+    if(strerror_s(buf, buf_size, err_num) == 0)
+        return std::string(buf);
+    else
+        return "Unkown error";
+
+#elif (_POSIX_C_SOURCE >= 200112L) && ! _GNU_SOURCE // posix version        
+    if (strerror_r(err_num, buf, buf_size) == 0)
+        return std::string(buf);
+    else
+        return "Unkown error";
 
 #else  // gnu version (might not use the given buf, so its retval pointer must be used)
-	return std::string(strerror_r(err_num, buf, buf_size));
-#endif		
+    return std::string(strerror_r(err_num, buf, buf_size));
+#endif
 }
 
 } //os
diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index 0e698150..ca391d16 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -130,7 +130,7 @@ void drop_all();
 // SPDLOG_TRACE(..) will also print current file and line.
 //
 // Example:
-// spdlog::set_level(spdlog::level::trace); 
+// spdlog::set_level(spdlog::level::trace);
 // SPDLOG_TRACE(my_logger, "some trace message");
 // SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
 // SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
@@ -138,7 +138,7 @@ void drop_all();
 
 #ifdef SPDLOG_TRACE_ON
 #define SPDLOG_STR_H(x) #x
-#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x) 
+#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
 #define SPDLOG_TRACE(logger, ...) logger->trace("[" __FILE__ " line #" SPDLOG_STR_HELPER(__LINE__) "] " __VA_ARGS__)
 #else
 #define SPDLOG_TRACE(logger, ...)