Ordinal string comparisons

Author: nblumhardt

src/Serilog.Extensions.Logging/Extensions/Logging/SerilogLogger.cs

@@ -103,12 +103,12 @@ LogEvent PrepareWrite<TState>(LogEventLevel level, EventId eventId, TState state
                 {
                     messageTemplate = value;
                 }
-                else if (property.Key.StartsWith("@"))
+                else if (property.Key.StartsWith("@", StringComparison.Ordinal))
                 {
                     if (_logger.BindProperty(GetKeyWithoutFirstSymbol(DestructureDictionary, property.Key), property.Value, true, out var destructured))
                         properties.Add(destructured.Name, destructured.Value);
                 }
-                else if (property.Key.StartsWith("$"))
+                else if (property.Key.StartsWith("$", StringComparison.Ordinal))
                 {
                     if (_logger.BindProperty(GetKeyWithoutFirstSymbol(StringifyDictionary, property.Key), property.Value?.ToString(), true, out var stringified))
                         properties.Add(stringified.Name, stringified.Value);

src/Serilog.Extensions.Logging/Extensions/Logging/SerilogLoggerScope.cs

@@ -95,12 +95,12 @@ static void AddProperty(LogEvent logEvent, ILogEventPropertyFactory propertyFact
     {
         var destructureObject = false;
 
-        if (key.StartsWith("@"))
+        if (key.StartsWith("@", StringComparison.Ordinal))
         {
             key = SerilogLogger.GetKeyWithoutFirstSymbol(SerilogLogger.DestructureDictionary, key);
             destructureObject = true;
         }
-        else if (key.StartsWith("$"))
+        else if (key.StartsWith("$", StringComparison.Ordinal))
         {
             key = SerilogLogger.GetKeyWithoutFirstSymbol(SerilogLogger.StringifyDictionary, key);
             value = value?.ToString();