xfsdump: add .ltdep to .gitignore

Make git ignore all .ltdep files.  They are created as part of the build
process:

	inventory/.ltdep
	librmt/.ltdep

Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
1 file changed