Re: [PATCH] ls-remote: document the '--get-url' option

While looking for a way to expand the URL of a remote
that uses a 'url.<name>.insteadOf' config option I stumbled
over the undocumented '--get-url' option of 'git ls-remote'.
This adds some minimum documentation for that option.

And while at it, also add that option to the '-h' output.

Signed-off-by: Stefan Naewe <redacted>
---
 Documentation/git-ls-remote.txt | 4 ++++
 builtin/ls-remote.c             | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/git-ls-remote.txt b/Documentation/git-ls-remote.txt
index 7a9b86a..a2ebf1d 100644
--- a/Documentation/git-ls-remote.txt
+++ b/Documentation/git-ls-remote.txt

@@ -42,6 +42,10 @@ OPTIONS
 	it successfully talked with the remote repository, whether it
 	found any matching refs.
 
+--get-url::
+	Expand the URL of the given remote repository taking into account any
+	"url.<base>.insteadOf" config setting (See linkgit:git-config[1]).
+