Fix UTF-8 encoding

Report to find out all non-UTF-8 files created by

cat extensions |xargs -I XXXX find . -name \*.XXXX |while read FILE ; do
    if ( iconv -f utf8 -t ucs2 $FILE >/dev/null 2>/dev/null ) ; then
        /bin/true
    else
        echo $FILE
    fi
done >>report

Signed-off-by: Matěj Cepl <mcepl@redhat.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>

[Daniel: git am failed for me, so I redid it.  The method listed in the
         commit message also failed, so I just used file/grep/iconv.  The
         results are the same though.]
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

exa/exa_driver.c

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2009 Maarten Maathuis
+ * Copyright © 2009 Maarten Maathuis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),