Correct docs for trim-trailing()

lib/Type/Cool.pod

@@ -502,8 +502,8 @@ leading whitespace stripped.
     method trim-trailing()
     sub trim-trailing(Str(Cool))
 
-Coerces the invocant (or in sub form, its argument) to L<Str|/type/Str>, and returns the string with both
-leading and trailing whitespace stripped.
+Coerces the invocant (or in sub form, its argument) to L<Str|/type/Str>, and
+returns the string with trailing whitespace stripped.
 
     my $stripped = '  abc '.trim-trailing;
     say "<$stripped>";          # <  abc>
@@ -784,3 +784,5 @@ EVAL
 =end comment
 
 =end pod
+
+# vim: expandtab shiftwidth=4 ft=perl6