be strict about the type of bracket

Author: coke

doc/Language/pod.pod6

@@ -70,8 +70,8 @@ are values of type String, Int, Number, or Boolean.
 
 Strings are delimited by single or double quotes.  Whitespace is not significant
 outside of strings. Hash keys need not be quote-delimited unless they contain
-significant whitespace. Strings entered inside angle brackets become lists when
-whitespace is used inside the brackets.
+significant whitespace. Strings entered inside angle brackets become lists if
+any whitespace is used inside the angle brackets.
 
 All option keys and values must, of course, be constants since Pod is a
 specification language, not a programming language. Specifically, option