[Fedora-packaging] adding INSTALL="install -p" to %configure

[Till Maas]

Hi,

the current Guidelines recommend to preserve timestamps when adding commands 
that copy files to a spec file:

https://fedoraproject.org/wiki/Packaging/Guidelines#Timestamps

Currently this is often in reviews also checked for commands that are e.g. in 
upstreams Makefile. If you think that this should be done, can you please 
adjust the Guidelines to reflect this and add "INSTALL='install -p'" to

%configure, to make this automatically happen for packages using autotools?

Regards,
Till