At least one string of the german translation for e2fsck contains invalid
placeholder values (%$i and %$b) that are not replaced.

# echo $LANG
de_DE.UTF-8
# e2fsck -f -v /dev/mapper/HDD 
e2fsck 1.43.8 (1-Jan-2018)
Durchgang 1: Inodes, Bl�cke und Gr��en werden gepr�ft
Der Erweiterungsbaum von Inode %$i (auf Ebene %$b) k�nnte schmaler sein. 
Reparieren<jy>? 
...

# LANG=C e2fsck -f -v /dev/mapper/HDD 
e2fsck 1.43.8 (1-Jan-2018)
Pass 1: Checking inodes, blocks, and sizes
Inode 9473431 extent tree (at level 2) could be narrower.  Fix<y>? yes
...

# rpm -qf /sbin/e2fsck
e2fsprogs-1.43.8-lp151.5.15.1.x86_64