tree-wide: Assorted spelling fixes

In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Joe Perches <joe@perches.com>
Cc: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index b571a1b..a88fcb3 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -782,7 +782,7 @@
 			break;
 
 		/* When writing back RX descriptor, GEM writes status
-		 * then buffer address, possibly in seperate transactions.
+		 * then buffer address, possibly in separate transactions.
 		 * If we don't wait for the chip to write both, we could
 		 * post a new buffer to this descriptor then have GEM spam
 		 * on the buffer address.  We sync on the RX completion