[PATCH 4/6] docs/archimport: quote sourcecontrol.net reference

[Jeff King <peff@peff.net>]

git-archimport has an option to register archives at
mirrors.sourcecontrol.net. The sourcecontrol.net domain
still exists, but that hostname no longer exists.

That means this feature is presumably broken. I'll leave the
examination and modification of that to people who might
actually use archimport. But in the meantime, let's wrap the
reference in the documentation in backticks, which will
avoid turning it into a broken link (and thus polluting
linkchecker results).

Signed-off-by: Jeff King <peff@peff.net>
---
It seems unlikely to me that anybody is using "arch" at all in 2017, so
maybe this whole command could be put to rest. But I didn't want to step
on any toes.

 Documentation/git-archimport.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/git-archimport.txt b/Documentation/git-archimport.txt
index 163b9f6f4..ea7065336 100644
--- a/Documentation/git-archimport.txt
+++ b/Documentation/git-archimport.txt
@@ -96,7 +96,7 @@ OPTIONS
 	pruned.
 
 -a::
-	Attempt to auto-register archives at http://mirrors.sourcecontrol.net
+	Attempt to auto-register archives at `http://mirrors.sourcecontrol.net`
 	This is particularly useful with the -D option.
 
 -t <tmpdir>::
-- 
2.13.0.rc0.363.g8726c260e