OpenSSL::Util::Pod: allow slashes in names

The names in the NAME section may describe headers, which contain a slash
for OpenSSL headers.  We deal with that by converting slashes to dashes
for the file names.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8286)

util/perl/OpenSSL/Util/Pod.pm

@@ -140,7 +140,7 @@ sub extract_pod_info {
     $podinfo{lastsecttext} =~ s| - .*$||;
 
     my @names =
-        map { s|\s+||g; $_ }
+        map { s|\s+||g; s|/|-|g; $_ }
         split(m|,|, $podinfo{lastsecttext});
 
     return ( section => $podinfo{section}, names => [ @names ] );