branch: group related arguments of create_branch()

39bd6f726 (Allow checkout -B <current-branch> to update the current
branch, 2011-11-26) added 'clobber_head' (now, 'clobber_head_ok')
"before" 'track' as 'track' was closely related 'clobber_head' for
the purpose the commit wanted to achieve. Looking from the perspective
of how the arguments are used it turns out that 'clobber_head' is
more related to 'force' than it is to 'track'.

So, re-order the arguments to keep the related arguments close
to each other.

Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

branch.h

@@ -13,19 +13,20 @@
  *
  *   - force enables overwriting an existing (non-head) branch
  *
- *   - reflog creates a reflog for the branch
- *
  *   - clobber_head_ok allows the currently checked out (hence existing)
  *     branch to be overwritten; without 'force', it has no effect.
  *
+ *   - reflog creates a reflog for the branch
+ *
  *   - quiet suppresses tracking information
  *
  *   - track causes the new branch to be configured to merge the remote branch
  *     that start_name is a tracking branch for (if any).
+ *
  */
 void create_branch(const char *name, const char *start_name,
-		   int force, int reflog,
-		   int clobber_head_ok, int quiet, enum branch_track track);
+		   int force, int clobber_head_ok,
+		   int reflog, int quiet, enum branch_track track);
 
 /*
  * Validates that the requested branch may be created, returning the