office: every subcommand answers --help, and delete refuses a system folder like /tmp or /home

bin/project-reset

@@ -33,6 +33,9 @@ PAGES = ["tree", "reply", "log", "new"]
 
 
 def main():
+    if "-h" in sys.argv[1:] or "--help" in sys.argv[1:]:
+        h.say(__doc__.strip())
+        return 0
     argv = sys.argv[1:]
     args = [a for a in argv if not a.startswith("--")]
     if not args: