update-dmd-rewrite.sh: Work around filter-repo weirdness (#4788)

The default replacement of commit refs from original to rewritten
hash seems to hick up occasionally for one commit, not always replacing
the original hash. I've now hit this two or three times for a recent-ish
DMD master commit, which was cherry-picked to stable upstream. Replace
the hash manually to the correct one (in our dmd-rewrite-master branch).

tools/update-dmd-rewrite.sh

@@ -23,7 +23,10 @@ temp_dir="$(mktemp -d)"
 cd "$temp_dir"
 
 # generate message-filters.txt file for replacing GitHub refs in commit messages
-echo 'regex:(^|\s|\()#(\d{2,})==>\1dlang/dmd!\2' > message-filters.txt
+cat > message-filters.txt <<'EOF'
+regex:(^|\s|\()#(\d{2,})==>\1dlang/dmd!\2
+(cherry picked from commit 88d1e8fc37428b873f59d87f8dff1f40fbd3e7a3)==>(cherry picked from commit 8b9b481a322bdcbfdad38ba4ad74182742aef118)
+EOF
 
 # clone DMD monorepo
 git clone [email protected]:dlang/dmd.git dmd.tmp
@@ -104,7 +107,7 @@ if [[ "$initialize" != 1 ]]; then
 fi
 
 # push prefixed master/stable branches and tags
-git push --tags ldc "${refs_prefix}master" "${refs_prefix}stable"
+git push --tags --atomic ldc "${refs_prefix}master" "${refs_prefix}stable"
 
 cd ../..
 rm -rf "$temp_dir"