Reorder copyright and nocopyright together

This is in preparation for fixing dotnet#151.

Author: davkean

src/CodeFormatter/CommandLineParser.cs

@@ -194,14 +194,14 @@ public static CommandLineParseResult Parse(string[] args)
                         return CommandLineParseResult.CreateError(error);
                     }
                 }
-                else if (arg.StartsWith(LanguageSwitch, comparison))
-                {
-                    language = arg.Substring(LanguageSwitch.Length);
-                }
                 else if (comparer.Equals(arg, "/nocopyright"))
                 {
                     ruleMap = ruleMap.SetItem(FormattingDefaults.CopyrightRuleName, false);
                 }
+                else if (arg.StartsWith(LanguageSwitch, comparison))
+                {
+                    language = arg.Substring(LanguageSwitch.Length);
+                }
                 else if (comparer.Equals(arg, "/nounicode"))
                 {
                     ruleMap = ruleMap.SetItem(FormattingDefaults.UnicodeLiteralsRuleName, false);