| Class | Debugger::StepCommand | 
| In: | cli/ruby-debug/commands/stepping.rb | 
| Parent: | Command | 
Implements debugger "step" command.
    # File cli/ruby-debug/commands/stepping.rb, line 72
72:       def help(cmd)
73:         %{
74:           s[tep][+-]?[ nnn]\tstep (into methods) once or nnn times
75:           \t\t'+' forces to move to another line.
76:           \t\t'-' is the opposite of '+' and disables the force_stepping setting.
77:         }
78:       end