No longer a develoment verison of perl, so no more -Dusedevel

So we install properly
stripflogs is now -s on the command-line

Probably need to re-visit this patch entirely now that they have made
significant changes in installperl.

Likely as part of the upstreaming process.
Don't try to install the GDBM_File man page

We don't install the module (as we don't support it) so have no need for
the docs.  Trying just confuses the installer.