Merge branch 'dl/rebase-with-autobase'

"git rebase" did not work well when format.useAutoBase
configuration variable is set, which has been corrected.

* dl/rebase-with-autobase:
  rebase: fix format.useAutoBase breakage
  format-patch: teach --no-base
  t4014: use test_config()
  format-patch: fix indentation
  t3400: demonstrate failure with format.useAutoBase

builtin/rebase.c

@@ -1039,7 +1039,8 @@ static int run_am(struct rebase_options *opts)
 	argv_array_pushl(&format_patch.args, "format-patch", "-k", "--stdout",
 			 "--full-index", "--cherry-pick", "--right-only",
 			 "--src-prefix=a/", "--dst-prefix=b/", "--no-renames",
-			 "--no-cover-letter", "--pretty=mboxrd", "--topo-order", NULL);
+			 "--no-cover-letter", "--pretty=mboxrd", "--topo-order",
+			 "--no-base", NULL);
 	if (opts->git_format_patch_opt.len)
 		argv_array_split(&format_patch.args,
 				 opts->git_format_patch_opt.buf);