avoid usage of Term::ReadKey, because this bypasses /dev/null connected stdin

perl-mail/perl-mail.spec

@@ -90,6 +90,9 @@ AutoReqProv:  no
     %setup7 -q -T -D -a 7
     %setup8 -q -T -D -a 8
     %setup9 -q -T -D -a 9
+    %{l_shtool} subst \
+        -e 's/\(has_readkey\) =[^;]*/\1 = 0/' \
+        Mail-Box-*/Makefile.PL
 
 %build