--debug=2 to disable concurrency

Author: Jorenar

git-fmt-diff

@@ -66,7 +66,7 @@ pat_list_to_case () {
 }
 
 rm_list__push () {
-    [ "$gf_debug" -eq 2 ] && return
+    [ "$gf_debug" -ge 3 ] && return
     for f in "$@"; do
         echo "$f" >> "$g_rm_list"
     done
@@ -446,6 +446,7 @@ processing () (
 
         # shellcheck disable=SC2086
         process_file "$risky" $line > "$outfile" &
+        [ "$gf_debug" -ge 2 ] && wait
 
         i=$((i+1))
     done << EOL