Clarrify .put does not call .Str on Str objects

Author: zoffixznet

doc/Type/Mu.pod6

@@ -205,8 +205,8 @@ adding a newline at end.
 
     multi method put() returns Bool:D
 
-Prints value to C<$*OUT> after stringification using C<.Str> method adding a
-newline at end.
+Prints value to C<$*OUT>, adding a newline at end, and if necessary,
+stringifying non-C<Str> object using the C<.Str> method.
 
     "abc".put;              # abc␤