code-review-gh-start: Add "origin/" prefix to merge baseHEADmaster

True, the remote name is not necessarily going to be called "origin",
but that's a reasonable default.

This allows commit ranges to work even when the merge base branch hasn't
been created locally.

1 files changed, 1 insertions, 1 deletions

diff --git a/code-review-gh-start b/code-review-gh-start
index 64a5339..eaabe35 100755
--- a/code-review-gh-start
+++ b/code-review-gh-start
@@ -35,4 +35,4 @@ github_merge_base() {
 			| .base.ref"
 }
 
-code-review-start "$(github_merge_base)"
+code-review-start "origin/$(github_merge_base)"