completion: use __gitcomp_builtin in _git_merge_base

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 4f598820cdb0d00980a583425b858e8194522585..b192a5c0a13c3a05c24455ef9c7d51032df3090a 100644 (file)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1798,7 +1798,7 @@ _git_merge_base ()
 {
        case "$cur" in
        --*)
-               __gitcomp "--octopus --independent --is-ancestor --fork-point"
+               __gitcomp_builtin merge-base
                return
                ;;
        esac