git: Treat .dump files as binary

This means that git grep will no longer show TDB dumps. This can be
changed at runtime using -a for all to include these files, while -I
will also omit any references to the files (no Binary file * matches).

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

diff --git a/.gitattributes b/.gitattributes
new file mode 100644 (file)
index 0000000..487bb88
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.dump binary