Function: _def_prompt_cont
Class: default
Section: default
C-Name: sd_prompt_cont
Prototype:
Help:
Doc: a string that will be printed
 to prompt for continuation lines (e.g. in between braces, or after a
 line-terminating backslash). Everything that applies to \kbd{prompt}
 applies to \kbd{prompt\_cont} as well.

 The default value is \kbd{""}.
