This update for e2fsprogs fixes the following issues:

- e2fsck: clarify overflow link count error message (bsc#1160979)
- ext2fs: update allocation info earlier in ext2fs_mkdir() (bsc#1160979)
- ext2fs: implement dir entry creation in htree directories (bsc#1160979)
- tests: add test to excercise indexed directories with metadata_csum (bsc#1160979)
- tune2fs: update dir checksums when clearing dir_index feature (bsc#1160979)

This update was imported from the SUSE:SLE-15:Update update project.