Remove the temporary file before copying files to it, to avoid

permission problems if the files in the source tree has read-only
permissions.

src/server/testsuite/lyskomd.0/46.exp

@@ -24,6 +24,7 @@
 # Test parsing a broken aux-item file as a result of SIGWINCH.
 
 set auxfile "lyskomd.0/aux-items-46.conf"
+system "rm -f $auxfile"
 system "cp $aux_item_default_conf_file $auxfile"
 
 lyskomd_start "$auxfile"
@@ -44,6 +45,7 @@ simple_expect "=1003 40 { 10104 10103 10102 10101 10100 35 34 33 32 31 30 29 28
 
 # Create a broken aux-item file.  A mistake can happen so easily...
 
+system "rm -f $auxfile"
 system "cp $srcdir/lyskomd.0/aux-items-bad.conf $auxfile"
 system "kill -WINCH $lyskomd_pid"
 talk_to lyskomd