documentation: trivial style cleanups

White-spaces, missing braces, standardize --[no-]foo.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index 5c16e31..a0727d7 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -14,7 +14,7 @@
 	  [-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
 	  [--separate-git-dir <git dir>]
 	  [--depth <depth>] [--[no-]single-branch]
-	  [--recursive|--recurse-submodules] [--] <repository>
+	  [--recursive | --recurse-submodules] [--] <repository>
 	  [<directory>]
 
 DESCRIPTION
@@ -188,7 +188,7 @@
 	with a long history, and would want to send in fixes
 	as patches.
 
---single-branch::
+--[no-]single-branch::
 	Clone only the history leading to the tip of a single branch,
 	either specified by the `--branch` option or the primary
 	branch remote's `HEAD` points at. When creating a shallow