elf: skip leading symbol dot in modversion.
elf: skip leading symbol dot in modversion.

Mimics module-init-tools's dump_modversions() that calls skip_dot()
to skip leading dots. This is required for PPC64.

lucasdemarchi/kmod,pmmccorm/kmod,Distrotech/kmod,pmmccorm/kmod,lpereira/kmod,Distrotech/kmod,Distrotech/kmod,lucasdemarchi/kmod,lpereira/kmod,lucasdemarchi/kmod,pmmccorm/kmod,lpereira/kmod