Eliminates slurp-rest because deprecation refs #2492

Author: JJ

doc/Language/5to6-nutshell.pod6

@@ -1446,13 +1446,13 @@ my $captured = qx(echo $arg);
 In Perl 6, you will probably want to run commands without using the shell:
 
     my $arg = 'Hello';
-    my $captured = run('echo', $arg, :out).out.slurp-rest;
-    my $captured = run(«echo "$arg"», :out).out.slurp-rest;
+    my $captured = run('echo', $arg, :out).out.slurp;
+    my $captured = run(«echo "$arg"», :out).out.slurp;
 
 You can also use the shell if you really want to:
 
     my $arg = 'Hello';
-    my $captured = shell("echo $arg", :out).out.slurp-rest;
+    my $captured = shell("echo $arg", :out).out.slurp;
     my $captured = qqx{echo $arg};
 
 But beware that in this case there is B<no protection at all>! C<run> does
@@ -1835,4 +1835,4 @@ live on GitHub. An online converter may become available at some point.
 
 =end pod
 
-# vim: expandtab softtabstop=4 shiftwidth=4 ft=perl6
+# vim: expandtab softtabstop=4 shiftwidth=4 ft=perl6