scripts/vim-patch.sh: include --shortstat with -m

scripts/vim-patch.sh

@@ -598,7 +598,9 @@ list_missing_previous_vimpatches_for_patch() {
 
   local -a missing_unique
   while IFS= read -r line; do
-    missing_unique+=("$line")
+    local commit="${line%%:*}"
+    local stat="$(git -C "${VIM_SOURCE_DIR}" show --format= --shortstat "${commit}")"
+    missing_unique+=("$(printf '%s\n  %s' "$line" "$stat")")
   done < <(printf '%s\n' "${missing_list[@]}" | sort -u)
 
   msg_err "$(printf '%d missing previous Vim patches:' ${#missing_unique[@]})"