clarify comments

Author: fchn289

src/log/UniCoutLog.hpp

@@ -14,7 +14,7 @@
 // - CORE:
 //   . cout
 //
-// - NOT MT safe: since (static) member; so shall ONLY use in main thread
+// - MT safe: NO!!! since (static) member; so shall NOT cross-thread use
 // ***********************************************************************************************
 #ifndef UNI_COUT_LOG_HPP_
 #define UNI_COUT_LOG_HPP_

src/log/UniSmartLog.hpp

@@ -11,7 +11,7 @@
 // - CORE:
 //   . smartLog_
 //
-// - NOT MT safe: since (static) member; so shall ONLY use in main thread
+// - MT safe: NO!!! since (static) member; so shall NOT cross-thread use
 // ***********************************************************************************************
 #ifndef UNI_SMART_LOG_HPP_
 #define UNI_SMART_LOG_HPP_