DESCRIPTION
-----------
-Removes files unknown to git. This allows cleaning the working tree
-of files that are not under version control. If the '-x' option is
-specified, ignored files are also removed, allowing the removal of all
-build products.
+
+This allows cleaning the working tree by removing files that are not
+under version control.
+
+Normally, only files unknown to git are removed, but if the '-x'
+option is specified, ignored files are also removed. This can, for
+example, be useful to remove all build products.
+
If any optional `<path>...` arguments are given, only those paths
are affected.
-
OPTIONS
-------
-d::