Adds --description (-d) option to ls-projects

Allows listing of projects together with their respective
description.

Line-feeds are escaped to allow ls-project to keep the
"one project per line"-style.

Just like the --branch option, --description not compatible
with the --tree option.

Change-Id: Ia2ec52db80af4fe4343f6a0263d7c02fa84c12cb
diff --git a/Documentation/cmd-ls-projects.txt b/Documentation/cmd-ls-projects.txt
index 0332c69..e6ef00c 100644
--- a/Documentation/cmd-ls-projects.txt
+++ b/Documentation/cmd-ls-projects.txt
@@ -41,6 +41,14 @@
 	If the user does not have access to any branch in the project then the
 	whole project is not shown.
 
+--description::
+--d::
+	Allows listing of projects together with their respective
+	description.
+
+	Line-feeds are escaped to allow ls-project to keep the
+	"one project per line"-style.
+
 --tree::
 -t::
 	Displays project inheritance in a tree-like format.