CLEANUP: assorted typo fixes in the code and comments
This is 22nd iteration of typo fixes
diff --git a/doc/management.txt b/doc/management.txt
index cee2683..1e79eb7 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -1793,7 +1793,7 @@
<expression> may only involve "internal" sample fetch keywords and converters
even though the most likely useful ones will be str('something') or int().
Note that the command line parser doesn't know about quotes, so any space in
- the expression must be preceeded by a backslash. This command requires levels
+ the expression must be preceded by a backslash. This command requires levels
"operator" or "admin". This command is only supported on a CLI connection
running in experimental mode (see "experimental-mode on").