Zypper failed to install package with insufficient space error while having
enough resources to do so.

> # df -h /
> Filesystem      Size  Used Avail Use% Mounted on
> /dev/sda2       6.8G  6.4G  410M  95% /
> 
> # lsblk -f
> NAME   FSTYPE LABEL UUID                                 MOUNTPOINT
> sda                                                      
> ������sda1 swap         b0c8e226-cd1c-4bf6-b8c5-1a55b843b376 [SWAP]
> ������sda2 xfs          eeb4dbd1-1b0c-4cc0-8414-d5e35b2508b1 /
> sr0
> 
> # zypper in -f glibc-locale-2.22-3.7.x86_64
> <...>
> 1 package to upgrade.
> Overall download size: 0 B. Already cached: 6.1 MiB. After the operation, additional 2.8 MiB will be used.
> Continue? [y/n/? shows all options] (y): 
> In cache glibc-locale-2.22-3.7.x86_64.rpm                                                                                                                                                    (1/1),   6.1 MiB (117.0 MiB unpacked)
> Checking for file conflicts:...[done]
> (1/1) Installing: glibc-locale-2.22-3.7.x86_64 ...[error]
> Installation of glibc-locale-2.22-3.7.x86_64 failed:
> Error: Subprocess failed. Error: RPM failed: 	installing package glibc-locale-2.22-3.7.x86_64 needs 112MB on the / filesystem
> 
> Abort, retry, ignore? [a/r/i] (a):