fix typo
diff --git a/Lib/distutils/cmd.py b/Lib/distutils/cmd.py
index fef4939..9362410 100644
--- a/Lib/distutils/cmd.py
+++ b/Lib/distutils/cmd.py
@@ -68,7 +68,7 @@
# Per-command versions of the global flags, so that the user can
# customize Distutils' behaviour command-by-command and let some
- # commands fallback on the Distribution's behaviour. None means
+ # commands fall back on the Distribution's behaviour. None means
# "not defined, check self.distribution's copy", while 0 or 1 mean
# false and true (duh). Note that this means figuring out the real
# value of each flag is a touch complicated -- hence "self._dry_run"