utils/scancpan: print package/Config.in only when useful
Currently, utils/scancpan always outputs what should be placed in
package/Config.in to include all Perl packages Config.in
files. However, in practice, this is only useful when a new package is
added. This commit adjusts this behavior so that what should be place
in package/Config for Perl packages is only displayed when scancpan
has produced a new Buildroot package for a Perl module.
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>