Fix the dependency declaration by removing the unnecessary/illegal
commas:
> WARNING: Makefile 'package/feeds/packages/smartmontools/Makefile' has a dependency on 'smartd,', which does not exist
> WARNING: Makefile 'package/feeds/packages/smartmontools/Makefile' has a dependency on 'nail,', which does not exist
> tmp/.config-package.in:153368:warning: ignoring unsupported character ','
> tmp/.config-package.in:153373:warning: ignoring unsupported character ','
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>