Remove trailing whitespace

doc/Type/Str.pod6

@@ -167,8 +167,8 @@ Examples:
     method match($pat, :continue(:$c), :pos(:$p), :global(:$g), :overlap(:$ov), :exhaustive(:$ex), :st(:$nd), :rd(:$th), :$nth, :$x --> Match)
 
 Performs a match of the string against C<$pat> and returns a L<Match> object if there is a successful match,
-and C<(Any)> otherwise. Matches are stored in C<$/>. If C<$pat> is not a L<Regex> object, match will coerce 
-the argument to a Str and then perform a literal match against C<$pat>. 
+and C<(Any)> otherwise. Matches are stored in C<$/>. If C<$pat> is not a L<Regex> object, match will coerce
+the argument to a Str and then perform a literal match against C<$pat>.
 
 A number of optional named parameters can be specified, which alter how the match is performed.
 
@@ -183,19 +183,19 @@ Takes a position as an argument. Fails if regex cannot be matched from that posi
 
 =item :global
 
-Instead of searching for just one match and returning a Match object, search for every non-overlapping match and return them in a List. 
+Instead of searching for just one match and returning a Match object, search for every non-overlapping match and return them in a List.
 
 =item :overlap
 
-Finds all matches including overlapping matches, but only returns one match from each starting position. 
+Finds all matches including overlapping matches, but only returns one match from each starting position.
 
 =item :exhaustive
 
 Finds all possible matches of a regex, including overlapping matches and matches that start at the same position.
 
 =item :st, :nd, rd, nth
 
-Takes an integer as an argument and returns the nth match in the string. 
+Takes an integer as an argument and returns the nth match in the string.
 
 =item :x