build: add missing files to gitignore

Several binaries show up in git status after running make in a fresh
clone, and so do files introduced by normal usage.

Signed-off-by: Omar Sandoval <osandov@osandov.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

.gitignore

@@ -5,6 +5,9 @@
 .libs
 .ltdep
 
+/local.config
+/results
+
 # autoconf generated files
 /autom4te.cache
 /configure
@@ -35,10 +38,12 @@
 /src/bstat
 /src/bulkstat_unlink_test
 /src/bulkstat_unlink_test_modified
+/src/dbtest
 /src/devzero
 /src/dirperf
 /src/dirstress
 /src/dmiperf
+/src/e4compact
 /src/fault
 /src/feature
 /src/fiemap-tester
@@ -99,12 +104,14 @@
 /src/writemod
 /src/xfsctl
 /src/aio-dio-regress/aio-dio-extend-stat
+/src/aio-dio-regress/aio-dio-fcntl-race
 /src/aio-dio-regress/aio-dio-hole-filling-race
 /src/aio-dio-regress/aio-dio-invalidate-failure
 /src/aio-dio-regress/aio-dio-invalidate-readahead
 /src/aio-dio-regress/aio-dio-subblock-eof-read
 /src/aio-dio-regress/aio-free-ring-with-bogus-nr-pages
 /src/aio-dio-regress/aio-io-setup-with-nonwritable-context-pointer
+/src/aio-dio-regress/aio-last-ref-held-by-io
 /src/aio-dio-regress/aiodio_sparse2
 /src/cloner
 /src/renameat2