include/: ignore sys/random.h symlink

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/.gitignore

@@ -38,6 +38,7 @@
 /sys/prctl.h
 /sys/procfs.h
 /sys/ptrace.h
+/sys/random.h
 /sys/reg.h
 /sys/regdef.h
 /sys/signalfd.h