Update libXfont to 1.5.4. Update libXfont2 to 2.0.3. This fixes several security vulnerabilities. MFH: 2017Q4 Security: 08a125f3-e35a-11e7-a293-54e1ad3d6335 3b9590a1-e358-11e7-a293-54e1ad3d6335