perl-String-ShellQuote from home:olh:xen-buildrequires project
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Add repository and install manually
For SLE 11 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:olh:xen-buildrequires/SLE_11/home:olh:xen-buildrequires.repo zypper refresh zypper install perl-String-ShellQuote