Security update for libxslt

This update for libxslt fixes the following issues:

Security issue fixed:

- CVE-2019-11068: Fixed a protection mechanism bypass where callers of
xsltCheckRead() and xsltCheckWrite() would permit access upon receiving an
error (bsc#1132160).

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
bnc#1132160
VUL-0: CVE-2019-11068: libxslt: bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckWrite permit access even upon receiving a -1 error code. xsltCheckRead can return -1 for a crafted
Selected Binaries
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