pull: remove extra space from reflog message

When executing "git pull" with no arguments, the reflog message was:
  "pull : Fast-forward"

Signed-off-by: Ori Avtalion <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: salty-horse

git-pull.sh

@@ -9,7 +9,7 @@ LONG_USAGE='Fetch one or more remote refs and merge it/them into the current HEA
 SUBDIRECTORY_OK=Yes
 OPTIONS_SPEC=
 . git-sh-setup
-set_reflog_action "pull $*"
+set_reflog_action "pull${1+ $*}"
 require_work_tree
 cd_to_toplevel