The undo_submodule_changes.sh script does not work on git version 1.8.3.1

[mbautin]

When all it needs to do is check out an old version (commit 5af111bc6e4e21a5c90dc6051ad814bc47642bf7 in this case) of the thirdparty submodule pointing to yugabyte-db-thirdparty, it tries to use the --name-only option and fails.

diff --git a/thirdparty b/thirdparty
index 5af111b..49ca690 160000
--- a/thirdparty
+++ b/thirdparty
@@ -1 +1 @@
-Subproject commit 5af111bc6e4e21a5c90dc6051ad814bc47642bf7
+Subproject commit 49ca690c1f5192d66f61c5b8da603f0eb57bce44
23:34 ~/code/yugabyte-db2 [2.1.8] $ cd thirdparty/
23:34 ~/code/yugabyte-db2/thirdparty (detached from 49ca690) $ gco 5af111bc6e4e21a5c90dc6051ad814bc47642bf7
Previous HEAD position was 49ca690... Add libedit to dependencies (#34)
HEAD is now at 5af111b... Re-try downloads of third-party dependencies (#19)
23:34 ~/code/yugabyte-db2/thirdparty (detached from 5af111b) $ cd ..
23:34 ~/code/yugabyte-db2 [2.1.8] $ git status
g# On branch 2.1.8
nothing to commit, working directory clean
23:34 ~/code/yugabyte-db2 [2.1.8] $ git diff
23:34 ~/code/yugabyte-db2 [2.1.8] $ bin/undo_submodule_changes.sh
error: unknown option `name-only'
usage: git config [options]

Config file location
--global use global config file
--system use system config file
--local use repository config file
-f, --file use given config file
--blob read config from given blob object

Action
--get get value: name [value-regex]
--get-all get all values: key [value-regex]
--get-regexp get values for regexp: name-regex [value-regex]
--replace-all replace all matching variables: name value [value_regex]
--add add a new variable: name value
--unset remove a variable: name [value-regex]
--unset-all remove all matches: name [value-regex]
--rename-section rename section: old-name new-name
--remove-section remove a section: name
-l, --list list all
-e, --edit open an editor
--get-color find the color configured: [default]
--get-colorbool
find the color setting: [stdout-is-tty]

Type
--bool value is "true" or "false"
--int value is decimal number
--bool-or-int value is --bool or --int
--path value is a path (file or directory name)

Other
-z, --null terminate values with NUL byte
--includes respect include directives on lookup

23:34 ~/code/yugabyte-db2 [2.1.8] $ git --version
git version 1.8.3.1