Fix usage of deprecated MimeUtil functions

Signed-off-by: NEddie Ringle <eddie@eringle.net>

retrofit/src/main/java/retrofit/RestAdapter.java

@@ -421,7 +421,7 @@ public class RestAdapter {
           }
 
           byte[] bodyBytes = ((TypedByteArray) body).getBytes();
-          String bodyCharset = MimeUtil.parseCharset(body.mimeType());
+          String bodyCharset = MimeUtil.parseCharset(body.mimeType(), "UTF-8");
           log.log(new String(bodyBytes, bodyCharset));
         } else if (logLevel.ordinal() >= LogLevel.HEADERS_AND_ARGS.ordinal()) {
           if (!request.getHeaders().isEmpty()) {
@@ -468,7 +468,7 @@ public class RestAdapter {
           byte[] bodyBytes = ((TypedByteArray) body).getBytes();
           bodySize = bodyBytes.length;
           String bodyMime = body.mimeType();
-          String bodyCharset = MimeUtil.parseCharset(bodyMime);
+          String bodyCharset = MimeUtil.parseCharset(bodyMime, "UTF-8");
           log.log(new String(bodyBytes, bodyCharset));
         }
       }

retrofit/src/test/java/retrofit/mime/MimeUtilTest.java

@@ -21,6 +21,7 @@ public class MimeUtilTest {
     assertThat(parseCharset("text/plain; notthecharset=utf-16;", "UTF-8")).isEqualToIgnoringCase("UTF-8");
   }
 
+  @SuppressWarnings("deprecation")
   @Test public void oldCharsetParsing() {
     assertThat(parseCharset("text/plain;charset=utf-8")).isEqualToIgnoringCase("UTF-8");
     assertThat(parseCharset("text/plain; charset=utf-8")).isEqualToIgnoringCase("UTF-8");