Revert "Revert "Update control.pod6" (#2275)" (#2276)

This reverts commit ed1df4c.

Author: ZzZombo

doc/Language/control.pod6

@@ -424,9 +424,9 @@ A for loop can produce a C<List> of the values produced by each run of the
 attached block.  To capture these values, put the for loop in parenthesis or
 assign them to an array:
 
-    (for 1, 2, 3 { $_ * 2 }).say;              # says "(2 4 6)"
-    my @a = do for 1, 2, 3 { $_ * 2 }; @a.say; # says "[2 4 6]"
-    my @b = (for 1, 2, 3 { $_ * 2 }); @a.say;  # same thing
+    (for 1, 2, 3 { $_ * 2 }).say;              # OUTPUT «(2 4 6)␤»
+    my @a = do for 1, 2, 3 { $_ * 2 }; @a.say; # OUTPUT «[2 4 6]␤»
+    my @b = (for 1, 2, 3 { $_ * 2 }); @b.say;  # OUTPUT: «[2 4 6]␤»
 
 =head1 X<gather/take|control flow,gather take>