Make sure we don't end up with slashes in the filename

diff --git a/klibc/md5hash.pl b/klibc/md5hash.pl
index 616d732..a3aa8f6 100644
--- a/klibc/md5hash.pl
+++ b/klibc/md5hash.pl
@@ -8,4 +8,8 @@
 $ctx = Digest::MD5->new;
 $ctx->addfile(*STDIN);
 
-print $ctx->b64digest, "\n";
+$hash = $ctx->b64digest;
+
+$hash =~ tr/\//_/;		# Slashes not wanted
+
+print $hash, "\n";