Add libxslt v1.1.33 info (#10328)

var/spack/repos/builtin/packages/libxslt/package.py

@@ -16,6 +16,7 @@ class Libxslt(AutotoolsPackage):
     homepage = "http://www.xmlsoft.org/XSLT/index.html"
     url      = "http://xmlsoft.org/sources/libxslt-1.1.32.tar.gz"
 
+    version('1.1.33', sha256='8e36605144409df979cab43d835002f63988f3dc94d5d3537c12796db90e38c8')
     version('1.1.32', sha256='526ecd0abaf4a7789041622c3950c0e7f2c4c8835471515fd77eec684a355460')
     version('1.1.29', 'a129d3c44c022de3b9dcf6d6f288d72e')
     version('1.1.28', '9667bf6f9310b957254fdcf6596600b7')