Remove 'T' from debug log timestamps

Space separation between major fields is easier for human eyes and
libs to parse.

src/util.cpp

@@ -240,7 +240,7 @@ inline int OutputDebugStringF(const char* pszFormat, ...)
 
             // Debug print useful for profiling
             if (fLogTimestamps && fStartedNewLine)
-                fprintf(fileout, "%s ", DateTimeStrFormat("%Y-%m-%dT%H:%M:%S", GetTime()).c_str());
+                fprintf(fileout, "%s ", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()).c_str());
             if (pszFormat[strlen(pszFormat) - 1] == '\n')
                 fStartedNewLine = true;
             else