:ss implies :s too, moritz++

Author: TimToady

S05-regex.pod

@@ -419,7 +419,8 @@ between sigspace and whitespace is primarily metaphorical, which is
 why the correspondence is both useful and (potentially) confusing.
 
 The C<:ss> (or C<:samespace>) variant may be used on substitutions to
-do smart space mapping.  For each sigspace-induced call to C<< <ws> >>
+do smart space mapping in addition to smart space matching.  (That is,
+C<:ss> implies C<:s>.)  For each sigspace-induced call to C<< <ws> >>
 on the left, the matched whitespace is copied over to the corresponding
 slot on the right, as represented by a single whitespace character
 in the replacement string wherever space replacement is desired.