Merge pull request #11764 from blueyed/vim-patch-usage

1 files changed, 5 insertions, 1 deletions

diff --git a/scripts/vim-patch.sh b/scripts/vim-patch.sh
index dc62c9e744..a8b622d5c4 100755
--- a/scripts/vim-patch.sh
+++ b/scripts/vim-patch.sh
@@ -29,6 +29,7 @@ usage() {
   echo "    -h                 Show this message and exit."
   echo "    -l [git-log opts]  List missing Vim patches."
   echo "    -L [git-log opts]  List missing Vim patches (for scripts)."
+  echo "    -m {vim-revision}  List previous (older) missing Vim patches."
   echo "    -M                 List all merged patch-numbers (at current v:version)."
   echo "    -p {vim-revision}  Download and generate a Vim patch. vim-revision"
   echo "                       can be a Vim version (8.0.xxx) or a Git hash."
@@ -433,7 +434,7 @@ _set_tokens_and_tags() {
 }
 
 # Prints a newline-delimited list of Vim commits, for use by scripts.
-# "$1": use extended format?
+# "$1": use extended format? (with subject)
 # "$@" is passed to list_vim_commits, as extra arguments to git-log.
 list_missing_vimpatches() {
   local -a missing_vim_patches=()
@@ -447,6 +448,8 @@ list_missing_vimpatches() {
 
 # Sets / appends to missing_vim_patches (useful to avoid a subshell when
 # used multiple times to cache tokens/vim_commit_tags).
+# "$1": use extended format? (with subject)
+# "$@": extra arguments to git-log.
 _set_missing_vimpatches() {
   local token vim_commit vim_tag patch_number
   declare -a git_log_args
@@ -587,6 +590,7 @@ list_missing_previous_vimpatches_for_patch() {
   set +u  # Avoid "unbound variable" with bash < 4.4 below.
   if [[ -z "${missing_list[*]}" ]]; then
     msg_ok 'no missing previous Vim patches'
+    set -u
     return 0
   fi
   set -u