stunnel from security:Stunnel project

对于 openSUSE Tumbleweed，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/security:Stunnel/openSUSE_Tumbleweed/security:Stunnel.repo
zypper refresh
zypper install stunnel

对于 openSUSE Leap 15.6，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/security:Stunnel/openSUSE_Leap_15.6/security:Stunnel.repo
zypper refresh
zypper install stunnel

对于 SLE 15 SP3，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/security:Stunnel/SLE_15_SP3/security:Stunnel.repo
zypper refresh
zypper install stunnel

对于 SLE 15，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/security:Stunnel/SLE_15/security:Stunnel.repo
zypper refresh
zypper install stunnel

对于 SLE 12 SP5，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/security:Stunnel/SLE_12_SP5/security:Stunnel.repo
zypper refresh
zypper install stunnel

对于 openSUSE Leap 16.0，请以根用户 root 运行下面命令：

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