Fix XML diagnose output

[Former user]

diff jaudiotagger-2.2.3-sources/org/jaudiotagger/logging/XMLTagDisplayFormatter.java jaudiotagger-2.2.3-sources/org/jaudiotagger/logging/XMLTagDisplayFormatter.java.orig 87c87 < replacedString.append("&#x").append(Integer.toString(Character.codePointAt(xmlData,i),16)).append(";");

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            replacedString.append("#x").append(Character.digit(tempChar, 16));

[IJabz]

Changed to replacedString.append("&#x").append(Integer.toString(Character.codePointAt(xmlData,i),16)); (I assume to cope with non charcter data ?)