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/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 12279f6..716870a 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -4404,7 +4404,7 @@
 /* Tibet Systems 'Progress DVR' CS16 muxsel helper [Chris Fanning]
  *
  * The CS16 (available on eBay cheap) is a PCI board with four Fusion
- * 878A chips, a PCI bridge, an Atmel microcontroller, four sync seperator
+ * 878A chips, a PCI bridge, an Atmel microcontroller, four sync separator
  * chips, ten eight input analog multiplexors, a not chip and a few
  * other components.
  *
@@ -4426,7 +4426,7 @@
  *
  * There is an ATMEL microcontroller with an 8031 core on board.  I have not
  * determined what function (if any) it provides.  With the microcontroller
- * and sync seperator chips a guess is that it might have to do with video
+ * and sync separator chips a guess is that it might have to do with video
  * switching and maybe some digital I/O.
  */
 static void tibetCS16_muxsel(struct bttv *btv, unsigned int input)