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/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index e933e2a..8bcd945 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -199,7 +199,7 @@
 		 sys_immutable:1, /* set = system files are immutable */
 		 dotsOK:1,        /* set = hidden and system files are named '.filename' */
 		 isvfat:1,        /* 0=no vfat long filename support, 1=vfat support */
-		 utf8:1,	  /* Use of UTF8 character set (Default) */
+		 utf8:1,	  /* Use of UTF-8 character set (Default) */
 		 unicode_xlate:1, /* create escape sequences for unhandled Unicode */
 		 numtail:1,       /* Does first alias have a numeric '~1' type tail? */
 		 atari:1,         /* Use Atari GEMDOS variation of MS-DOS fs */