Remove target before link() of perldiag.pod

diff --git a/installperl b/installperl
index 53468a9..a654b26 100755 (executable)
--- a/installperl
+++ b/installperl
@@ -243,6 +243,7 @@ if (! $versiononly || !($installprivlib =~ m/\Q$]/)) {
                       "${installarchlib}/pod/perldiag.pod");
     if (compare($from, $to) || $nonono) {
        mkpath("${installarchlib}/pod", 1, 0777);
+       unlink($to);
        link($from, $to);
     }
 }