anchor.diff:  |Description|Returns true if a prefix of the target is in the set of whitespace separated values.
   |     Syntax|`strmatch_prefix <value1 value2 ... valueN>`
   |      Types|String
  -|     Module|core
  +|     Module|stringset
   |    Version|0.10
   |===============================================================================
   
  
positive.code: [cols=">h,<9"]
  |===============================================================================
  |Description|Returns a collection of names from a collection of name/value pairs.
  |  InputType|String
  | OutputType|String
  |     Module|core
  |    Version|0.6
  |===============================================================================
  
negative.code: |===============================================================================
  |Description|Return the integral value closest to the numeric value of the input.
  |  InputType|Numeric
  | OutputType|Integer
  |     Module|core
  |    Version|0.9
  |===============================================================================
  