Fix compile error (method not available in 1.5)

Change-Id: I07aca821010daca75a66506b9ca738bc8c262abb
Signed-off-by: Markus Keller <markus_keller@ch.ibm.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/storage/file/FileBasedConfig.java

@@ -192,7 +192,7 @@ public class FileBasedConfig extends StoredConfig {
 			bos.write(0xEF);
 			bos.write(0xBB);
 			bos.write(0xBF);
-			bos.write(text.getBytes(RawParseUtils.UTF8_CHARSET));
+			bos.write(text.getBytes(RawParseUtils.UTF8_CHARSET.name()));
 			out = bos.toByteArray();
 		} else {
 			out = Constants.encode(text);