gnu_ddrescue from home:sor593 project

For openSUSE Tumbleweed run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:sor593/openSUSE_Tumbleweed/home:sor593.repo
zypper refresh
zypper install gnu_ddrescue

For openSUSE Leap 42.3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:sor593/openSUSE_Leap_42.3/home:sor593.repo
zypper refresh
zypper install gnu_ddrescue

For openSUSE Leap 15.2 ARM run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:sor593/openSUSE_Leap_15.2_ARM/home:sor593.repo
zypper refresh
zypper install gnu_ddrescue

For 15.4 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:sor593/15.4/home:sor593.repo
zypper refresh
zypper install gnu_ddrescue

For openSUSE Backports SLE-15-SP3 step run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:sor593/openSUSE_Backports_SLE-15-SP3_step/home:sor593.repo
zypper refresh
zypper install gnu_ddrescue