Sync with upstream verilog-mode revision 3cd8144

Sync with upstream verilog-mode revision 3cd8144

* lisp/progmodes/verilog-mode.el (verilog-mode-version): Bump.
(verilog-auto-arg-format): New option, to support newlines in AUTOARG.
(verilog-type-font-keywords): Add nor.
(verilog-batch-execute-func): Force reading of Local Variables.
Fix printing "no changes to be saved" with verilog-batch.
(verilog-auto-arg-ports): Doc fix.
Add verilog-auto-arg-format to support newlines in AUTOARG.
(verilog-auto-arg): Doc fix.