chore(vim-patch.sh): replace hub with gh (#15162)

scripts/vim-patch.sh

@@ -326,12 +326,14 @@ stage_patch() {
     * Do this only for _related_ patches (otherwise it increases the
       size of the pull request, making it harder to review)
 
-  When you are done, try "%s -s" to create the pull request.
-
+  When you are done, try "%s -s" to create the pull request.
+
   See the wiki for more information:
     * https://github.com/neovim/neovim/wiki/Merging-patches-from-upstream-vim
 ' "${vim_version}" "${BASENAME}" "${BASENAME}"
-  return $ret
+  return $ret
+}
+
 gh_pr() {
   gh pr create --title "$1" --body "$2"
 }
@@ -341,14 +343,14 @@ submit_pr() {
   pr_message="$(printf '%s\n\n%s\n' "$1" "$2")"
   git hub pull new -m "${pr_message}"
 }
-
-# shellcheck disable=SC2015
+
+# shellcheck disable=SC2015
 # ^ "Note that A && B || C is not if-then-else."
 submit_pr() {
   require_executable git
   local push_first
-  push_first=1
-  local submit_fn
+  push_first=1
+  local submit_fn
   if check_executable gh; then
     submit_fn="gh_pr"
   elif check_executable git-hub; then
@@ -371,9 +373,7 @@ submit_pr() {
   local git_remote
   git_remote="$(find_git_remote)"
   local pr_body
-  pr_body="$(git log --grep=vim-patch --reverse --format='#### %s%n%n%b%n' "${git_remote}"/master..HEAD)"
-  local patches
-  # Extract just the "vim-patch:X.Y.ZZZZ" or "vim-patch:sha" portion of each log
+  pr_body="$(git log --grep=vim-patch --reverse --format='#### %s%n%n%b%n' "${git_remote}"/master..HEAD)"
   local patches
   # Extract just the "vim-patch:X.Y.ZZZZ" or "vim-patch:sha" portion of each log
   patches=("$(git log --grep=vim-patch --reverse --format='%s' "${git_remote}"/master..HEAD | sed 's/: .*//')")
@@ -385,7 +385,7 @@ submit_pr() {
 
   if [[ $push_first -ne 0 ]]; then
     echo "Pushing to 'origin/${checked_out_branch}'."
-    output="$(git push origin "${checked_out_branch}" 2>&1)" &&
+    output="$(git push origin "${checked_out_branch}" 2>&1)" &&
       msg_ok "${output}" ||
       (msg_err "${output}"; false)