fix: Use of wrong cli arugment(-L) to correct one(-l) in barnyard2 init script

FIX: SysVinit script of barnyard2, rpm/barnyard2 uses capitalized
form of cli argument(-L). This leads to failure of init script during
execution. Updated it to use correct option, -l.

Signed-off-by: Shashank Sahni <shredder12@gmail.com>