more misc typo fixes

Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/fs/Kconfig b/fs/Kconfig
index 8d18497..deaad99 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1032,7 +1032,7 @@
 	  on files and directories, and database-like indeces on selected
 	  attributes. (Also note that this driver doesn't make those features
 	  available at this time). It is a 64 bit filesystem, so it supports
-	  extremly large volumes and files.
+	  extremely large volumes and files.
 
 	  If you use this filesystem, you should also say Y to at least one
 	  of the NLS (native language support) options below.