diff --git a/contrib/bash_completion b/contrib/bash_completion
--- a/contrib/bash_completion
+++ b/contrib/bash_completion
@@ -28,7 +28,7 @@
 #              cat ~/.patchbomb-$1
 #          fi
 #      }
-# 
+#
 #
 # Writing completion functions for additional commands:
 #
@@ -50,7 +50,7 @@
 #                  an argument (e.g. '--cwd|-R|--repository')
 # - $canonical - 1 if we canonicalized $cmd before calling the function
 #                0 otherwise
-# 
+#
 
 shopt -s extglob
 
@@ -425,7 +425,7 @@ complete -o bashdefault -o default -F _h
     done
 
     if [ -z "$subcmd" ] || [ $COMP_CWORD -eq $i ] || [ "$subcmd" = help ]; then
-	COMPREPLY=(${COMPREPLY[@]:-} 
+	COMPREPLY=(${COMPREPLY[@]:-}
 		   $(compgen -W 'bad good help init next reset' -- "$cur"))
 	return
     fi
@@ -445,7 +445,7 @@ complete -o bashdefault -o default -F _h
 {
     case "$prev" in
 	-c|--cc|-t|--to|-f|--from|--bcc)
-	    # we need an e-mail address. let the user provide a function 
+	    # we need an e-mail address. let the user provide a function
 	    # to get them
 	    if [ "$(type -t _hg_emails)" = function ]; then
 		local arg=to