ENCODING_MINIMAL_XML was missing in last commit

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-merge-1.4.x@944 152afb58-edef-0310-8abb-c4023f1b3aa9

src/buffer.h

@@ -88,6 +88,7 @@ typedef enum {
 	ENCODING_REL_URI, /* for coding a rel-uri (/with space/and%percent) nicely as part of a href */
 	ENCODING_REL_URI_PART, /* same as ENC_REL_URL plus coding / too as %2F */
 	ENCODING_HTML,    /* & becomes & and so on */
+	ENCODING_MINIMAL_XML, /* minimal encoding for xml */
 	ENCODING_HEX      /* encode string as hex */
 } buffer_encoding_t;