start ignoring include/ symlinks

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

include/.gitignore

@@ -0,0 +1,21 @@
+/bits/
+/config/
+/dl-osinfo.h
+/fpu_control.h
+/hp-timing.h
+/pthread.h
+/semaphore.h
+/sys/acct.h
+/sys/debugreg.h
+/sys/elf.h
+/sys/epoll.h
+/sys/inotify.h
+/sys/io.h
+/sys/perm.h
+/sys/prctl.h
+/sys/procfs.h
+/sys/ptrace.h
+/sys/reg.h
+/sys/ucontext.h
+/sys/user.h
+/sys/vm86.h