tools/git-sync-deps: fix error in git syntax for changing origin

tools/git-sync-deps

Index: tools/git-sync-deps
diff --git a/tools/git-sync-deps b/tools/git-sync-deps
index c99ae9120727abdd17a3163743d0506f0c57e10c..e13ce8831a747ad77a8322203ac488e634016f61 100755
--- a/tools/git-sync-deps
+++ b/tools/git-sync-deps
@@ -144,7 +144,8 @@ def git_checkout_to_directory(git, repo, checkoutable, directory, verbose):
 
   if 0 != subprocess.call(
       [git, 'checkout', '--quiet', checkoutable], cwd=directory):
-      subprocess.check_call([git, 'remote', 'set-url', repo], cwd=directory)
+      subprocess.check_call(
+          [git, 'remote', 'set-url', 'origin', repo], cwd=directory)
       subprocess.check_call([git, 'fetch', '--quiet'], cwd=directory)
       subprocess.check_call([git, 'checkout', '--quiet'], cwd=directory)