[Qemu-trivial] [PATCH for-4.0] maint: Ignore built elf2dmp

[Eric Blake]

Commit 3fa2d384 added a binary 'elf2dmp' but did not ignore it
during an in-tree build.

Signed-off-by: Eric Blake <address@hidden>
---

Yes, I know we want to get rid of in-tree builds for 4.1; but
for 4.0, this patch may still make sense.

 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 77522561b8e..42d2d473559 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
 /config-target.*
 /config.status
 /config-temp
+/elf2dmp
 /trace-events-all
 /trace/generated-events.h
 /trace/generated-events.c
-- 
2.20.1