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

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() {
   )"
   # Exit in case of errors from the above eval (empty vim_commit_tags).
   if ! (( "${#vim_commit_tags[@]}" )); then
-    msg_err "Could not get Vim commits/tags."
+    msg_err "Could not get Vim commits/tags."
     exit 1
   fi
 }
@@ -447,6 +448,8 @@ list_missing_vimpatches() {
   set +u  # Avoid "unbound variable" with bash < 4.4 below.
   for line in "${missing_vim_patches[@]}"; do
     printf '%s\n' "$line"
+  done
+  set -u
 }
 
 # Sets / appends to missing_vim_patches (useful to avoid a subshell when
@@ -587,6 +590,7 @@ list_missing_previous_vimpatches_for_patch() {
         printf -- "-\n"
       fi
     fi
+    set -u
   done
 
   set +u  # Avoid "unbound variable" with bash < 4.4 below.