Makefile: Make `make get-git` work under OpenBSD.

OpenBSD tar(1) defaults to read from "/dev/rst0" when not specifying an
filename and thus fails to extract the Git sourcecode when not passing
stdin as input file descriptor explicitly.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 2dae3ac..3bdc218 100644
--- a/Makefile
+++ b/Makefile
@@ -169,3 +169,3 @@ clean-doc:
 
 get-git:
-        curl $(GIT_URL) | tar -xj && rm -rf git && mv git-$(GIT_VER) git
+        curl $(GIT_URL) | tar -xjf - && rm -rf git && mv git-$(GIT_VER) git