Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/fs/bio.c b/fs/bio.c
index 4d6d4b6..840a0d7 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1436,7 +1436,7 @@
  *   preferred way to end I/O on a bio, it takes care of clearing
  *   BIO_UPTODATE on error. @error is 0 on success, and and one of the
  *   established -Exxxx (-EIO, for instance) error values in case
- *   something went wrong. Noone should call bi_end_io() directly on a
+ *   something went wrong. No one should call bi_end_io() directly on a
  *   bio unless they own it and thus know that it has an end_io
  *   function.
  **/