Fix the archive code so that it compiles in a stricter mode.

utils/archive/reader.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This file declares request-handling functions for reading archives. Each
  * function is called when a message is received with the corresponding request
  * type, and posts a success or error response to the reply port.
  *
  * There is a close correspondence between functions here and the libarchive
@@ skipping 37 matching lines @@
 void archiveReadSupportFormatIso9660(Dart_Port p, struct archive* a);
 
 void archiveReadSupportFormatMtree(Dart_Port p, struct archive* a);
 
 void archiveReadSupportFormatRaw(Dart_Port p, struct archive* a);
 
 void archiveReadSupportFormatTar(Dart_Port p, struct archive* a);
 
 void archiveReadSupportFormatZip(Dart_Port p, struct archive* a);
 
-void archiveReadSetFilterOptions(Dart_Port p, struct archive* a,
-                                 Dart_CObject* request);
+void archiveReadSetFilterOption(Dart_Port p, struct archive* a,
+                                Dart_CObject* request);
 
-void archiveReadSetFormatOptions(Dart_Port p, struct archive* a,
-                                 Dart_CObject* request);
+void archiveReadSetFormatOption(Dart_Port p, struct archive* a,
+                                Dart_CObject* request);
 
-void archiveReadSetOptions(Dart_Port p, struct archive* a,
-                           Dart_CObject* request);
+void archiveReadSetOption(Dart_Port p, struct archive* a,
+                          Dart_CObject* request);
 
 void archiveReadOpenFilename(Dart_Port p, struct archive* a,
                              Dart_CObject* request);
 
 void archiveReadOpenMemory(Dart_Port p, struct archive* a,
                            Dart_CObject* request);
 
 void archiveReadNextHeader(Dart_Port p, struct archive* a);
 
 void archiveReadDataBlock(Dart_Port p, struct archive* a);
 
 void archiveReadDataSkip(Dart_Port p, struct archive* a);
 
 void archiveReadClose(Dart_Port p, struct archive* a);
 
 void archiveReadFree(Dart_Port p, struct archive* a);
 
 #endif  // DART_ARCHIVE_READER_H_