Fixed minor style issues

Author: ckadluba

src/Serilog.Sinks.MSSqlServer/Sinks/MSSqlServer/Output/XmlPropertyFormatter.cs

@@ -9,7 +9,7 @@ namespace Serilog.Sinks.MSSqlServer.Output
 {
     internal class XmlPropertyFormatter : IXmlPropertyFormatter
     {
-        private static readonly Regex _invalidXMLChars = new Regex(
+        private static readonly Regex _invalidXmlChars = new Regex(
             @"(?<![\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x9F\uFEFF\uFFFE\uFFFF]",
             RegexOptions.Compiled);
 
@@ -61,7 +61,7 @@ private static string SimplifyScalar(object value)
         {
             if (value == null) return null;
 
-            return new XText(_invalidXMLChars.Replace(value.ToString(), m => "\\u" + ((ushort)m.Value[0]).ToString("x4", CultureInfo.InvariantCulture))).ToString();
+            return new XText(_invalidXmlChars.Replace(value.ToString(), m => "\\u" + ((ushort)m.Value[0]).ToString("x4", CultureInfo.InvariantCulture))).ToString();
         }
 
         private string SimplifyDictionary(ColumnOptions.PropertiesColumnOptions options, DictionaryValue dict)

src/Serilog.Sinks.MSSqlServer/Sinks/MSSqlServer/Platform/SqlCreateTableWriter.cs

@@ -48,7 +48,7 @@ public string GetSql()
                 {
                     var common = (SqlColumn)column.ExtendedProperties["SqlColumn"];
 
-                    sql.Append(GetColumnDDL(common));
+                    sql.Append(GetColumnDdl(common));
                     if (dataTable.Columns.Count > i++) sql.Append(',');
                     sql.AppendLine();
 
@@ -84,7 +84,7 @@ public string GetSql()
         // Examples of possible output:
         // [Id] BIGINT IDENTITY(1,1) NOT NULL
         // [Message] VARCHAR(1024) NULL
-        private static string GetColumnDDL(SqlColumn column)
+        private static string GetColumnDdl(SqlColumn column)
         {
             var sb = new StringBuilder();