Another small tweak to whitespace tool

clang-format doesn't appear to reindent multi line #define statements
correctly - so this hopefully will clean those up.

The included whitespace corrections to the code should stay in place when
using the updated tool.

This includes cleaning up some multi-line comments that were messed up the
last time around as well as a few other minor changes.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

parse-xml.c

@@ -534,7 +534,7 @@ static void utf8_string(char *buffer, void *_res)
 }
 
 #define MATCH(pattern, fn, dest) \
-    match(pattern, strlen(pattern), name, fn, buf, dest)
+	match(pattern, strlen(pattern), name, fn, buf, dest)
 
 static void get_index(char *buffer, void *_i)
 {