Security update for rubygem-mail, rubygem-mail-2_4, rubygem-mail-2_5

This update for rubygem-mail, rubygem-mail-2_4, rubygem-mail-2_5 fixes the following security issues:

* boo#959129: SMTP Injection via recipient email addresses

Fixed bugs
bnc#959129
VUl-0: rubygem-mail: SMTP Injection via recipient email addresses
Selected Binaries
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