show-branch: fix indentation of usage string

Noticed-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/show-branch.c

@@ -7,9 +7,9 @@
 
 static const char* show_branch_usage[] = {
     N_("git show-branch [-a|--all] [-r|--remotes] [--topo-order | --date-order]\n"
-       "		       [--current] [--color[=<when>] | --no-color] [--sparse]\n"
-       "		       [--more=<n> | --list | --independent | --merge-base]\n"
-       "	       [--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]"),
+       "		[--current] [--color[=<when>] | --no-color] [--sparse]\n"
+       "		[--more=<n> | --list | --independent | --merge-base]\n"
+       "		[--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]"),
     N_("git show-branch (-g|--reflog)[=<n>[,<base>]] [--list] [<ref>]"),
     NULL
 };