Rename remote.uri to remote.url within remote handling internals

Anyplace we talk about the address of a remote repository we always
refer to it as a URL, especially in the configuration file and
.git/remotes where we call it "remote.$n.url" or start the first
line with "URL:".  Calling this value a uri within the internal C
code just doesn't jive well with our commonly accepted terms.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-fetch.c b/builtin-fetch.c
index b9722e5..997a8ff 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -530,7 +530,7 @@
 	else
 		remote = remote_get(argv[i++]);
 
-	transport = transport_get(remote, remote->uri[0]);
+	transport = transport_get(remote, remote->url[0]);
 	if (verbose >= 2)
 		transport->verbose = 1;
 	if (quiet)