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/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c
index c412e80..1dcdce0 100644
--- a/drivers/net/irda/sa1100_ir.c
+++ b/drivers/net/irda/sa1100_ir.c
@@ -331,7 +331,7 @@
 		 * If we missed a speed change, initialise at the new speed
 		 * directly.  It is debatable whether this is actually
 		 * required, but in the interests of continuing from where
-		 * we left off it is desireable.  The converse argument is
+		 * we left off it is desirable.  The converse argument is
 		 * that we should re-negotiate at 9600 baud again.
 		 */
 		if (si->newspeed) {