libxslt: fix compilation because of wrong libxml2 check in configure script

More details: 90c34c8bb9

Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>

libs/libxslt/patches/010-fix-xml2-config-check.patch

@@ -0,0 +1,11 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -546,7 +546,7 @@ dnl make sure xml2-config is executable,
+ dnl test version and init our variables
+ dnl
+ 
+-if test "x$LIBXML_LIBS" = "x" && ${XML_CONFIG} --libs print > /dev/null 2>&1
++if test "x$LIBXML_LIBS" = "x" && ${XML_CONFIG} --libs > /dev/null 2>&1
+ then
+     AC_MSG_CHECKING(for libxml libraries >= $LIBXML_REQUIRED_VERSION)
+     XMLVERS=`$XML_CONFIG --version`