It's UTF-8

Fix some comments to "UTF-8".

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 2d365cb..dd6048c 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -561,7 +561,7 @@
  * @sb: Superblock
  * @src: Input string buffer in NLS format
  * @srclen: Length of input string in bytes
- * @dest: The output string in UTF8 format
+ * @dest: The output string in UTF-8 format
  * @destlen: Length of the output buffer
  * 
  * Converts input string @src, which is in the format of the loaded NLS map,