Fix misspellings collected by members of KJ list.

Fix the misspellings of "propogate", "writting" and (oh, the shame
:-) "kenrel" in the source tree.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index e073fd8..f25086a 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -1110,7 +1110,7 @@
 	if (!barrier) {
 		/* If there was a write error in the journal - we can't commit
 		 * this transaction - it will be invalid and, if successful,
-		 * will just end up propogating the write error out to
+		 * will just end up propagating the write error out to
 		 * the file system. */
 		if (likely(!retval && !reiserfs_is_journal_aborted (journal))) {
 			if (buffer_dirty(jl->j_commit_bh))
@@ -1125,7 +1125,7 @@
 
 	/* If there was a write error in the journal - we can't commit this
 	 * transaction - it will be invalid and, if successful, will just end
-	 * up propogating the write error out to the filesystem. */
+	 * up propagating the write error out to the filesystem. */
 	if (unlikely(!buffer_uptodate(jl->j_commit_bh))) {
 #ifdef CONFIG_REISERFS_CHECK
 		reiserfs_warning(s, "journal-615: buffer write failed");