Ignore generated files and dirs.

.gitignore

+*.[oa]
+dummy
+ID
+Makefile
+configure.sh
+config.cache
+config.h
+config.h.in
+config.log
+config.status
+/proto.h
+/rsync.1
+/rsyncd.conf.5
+/autom4te*.cache
+/confdefs.h
+/conftest*
+/dox
+/getgroups
+/gmon.out
+/rsync
+/shconfig
+/testdir
+/tests-dont-exist
+/testtmp
+/tls
+/trimslash
+/t_unsafe
+/wildtest
+/getfsdev
+/mkrounding
+/rounding.h
+/doc/rsync.pdf
+/doc/rsync.ps
+/testsuite/chown-fake.test
+/testsuite/devices-fake.test