Add extra use in tests using which

Author: Tyil

t/command-bootstrap-man.t

@@ -2,10 +2,11 @@
 
 use v6.c;
 
-use File::Temp;
 use App::Cpan6::Commands::Bootstrap::Man;
 use App::Cpan6::Commands::New;
 use App::Cpan6::Config;
+use File::Temp;
+use File::Which;
 use Test;
 
 if (!which("a2x")) {

t/command-dist.t

@@ -5,6 +5,7 @@ use v6.c;
 use App::Cpan6::Commands::New;
 use App::Cpan6::Commands::Dist;
 use File::Temp;
+use File::Which;
 use Test;
 
 multi sub MAIN { 0 }