From time to time I open a script or config file for which there is no major mode defined. When I invoke
comment-region within that buffer, Emacs will prompt me for the comment syntax, and save it as the buffer-local variable
Can I enable syntax highlighting of comment lines in that buffer?
Once the variable
comment-start has been set, what other steps do I need to take in order for
font-lock-mode to start highlighting my comment lines?