Reformats and checks definitions closes #2810

doc/Type/independent-routines.pod6

@@ -1064,9 +1064,11 @@ Defined as:
     multi sub undefine(Array \x)
     multi sub undefine(Hash  \x)
 
-B<DEPRECATED> in 6.d language version and will be removed in 6.e. For L<Array|/type/Array>
-and L<Hash|/type/Hash>, it will become equivalent to assigning L<Empty|/type/Slip#index-entry-Empty-Empty>; for everything
-else, equivalent to assigning L<Nil|/type/Nil>, whose use is advised.
+B<DEPRECATED> in 6.d language version and will be removed in 6.e. For
+L<Array|/type/Array> and L<Hash|/type/Hash>, it will become equivalent to
+assigning L<Empty|/type/Slip#index-entry-Empty-Empty>; for everything else,
+equivalent to assigning L<Nil|/type/Nil> or C<Empty> in the case of arrays or
+hashes, whose use is advised.
 
 =head1 Control routines
 
@@ -1076,7 +1078,8 @@ Routines that change the flow of the program, maybe returning a value.
 
 Defined as:
 
-    sub exit(Int() $status = 0)
+    multi sub exit()
+    multi sub exit(Int(Any) $status)
 
 Exits the current process with return code C<$status> or zero if no
 value has been specified. The exit value (C<$status>), when different
@@ -1101,8 +1104,9 @@ Defined as
     sub done(--> Nil)
 
 If used outside any supply or react block, throws an exception C<done without
-supply or react>. Within a L<Supply|/type/Supply> block, it will indicate the supply will no
-longer emit anything. See also L<documentation on method C<done>|/routine/done>.
+supply or react>. Within a L<Supply|/type/Supply> block, it will indicate the
+supply will no longer emit anything. See also L<documentation on method
+C<done>|/routine/done>.
 
 =for code
 my $supply = supply {