update-doc-branches: create t/tmp if needed

Signed-off-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/dev/update-doc-branches b/dev/update-doc-branches
index 226a1526301b2619ae0a017767a12f86754955b2..2f0410ef06e975d5a4529bfebaf37ab1b5403743 100755 (executable)
--- a/dev/update-doc-branches
+++ b/dev/update-doc-branches
@@ -20,6 +20,7 @@ echo "$html_ref" | grep -qE '^refs/heads'
 
 "${MAKE:-make}"
 
+mkdir -p t/tmp
 tmpdir="$(mktemp -d "t/tmp/update-doc-branches-XXXXXX")"
 trap "$(printf 'rm -rf %q' "$tmpdir")" EXIT
 tmpidx="$tmpdir/git-index.tmp"