This update for targetcli and python-rtslib provides the following fixes:

targetcli:

- Remove trailing white spaces before parsing "exit" command. (boo#948529)
- Update systemd service start to load current configuration, if any, using
load_targetcli_config. (boo#954234)
- Fix silent failure on backstore file creation when file size is not
specified. (boo#910538)

python-rtslib:

- Add qla2xxx_wwn WWN type, allowing systems with existing targets to be validated
by rtslib and for the configuration to be saved. (boo#954234)
- Fix detection of 64-bit architectures. (boo#956509)
- If the system hostname contains underscores, replace them by dashes before using
it to create target names. (boo#958274)

This update was imported from the SUSE:SLE-12:Update update project.