verilog-indent-lists

verilog-indent-lists is a variable defined in `verilog-mode.el'.
Its value is

t

• This variable is safe as a file local variable if its value
  satisfies the predicate `verilog-booleanp'.

Documentation:
How to treat indenting items in a list.
If t (the default), indent as:
always @( posedge a or
reset ) begin

If nil, treat as:
always @( posedge a or
reset ) begin

You can customize this variable.