Documentation/git-clean.txt: document that -f may need to be given twice

This is needed in build automation where the tree really needs to be reset to known state. Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Mikko Rapeli committed Feb 26, 2015 at 15:16 UTC bcd57cb9e1583fe5174112422caba0397f7ae5f6
1 file changed +6 -2
Documentation/git-clean.txt
+6 -2
@@ -34,8 +34,12 @@ OPTIONS
34 -f::
35 --force::
36 If the Git configuration variable clean.requireForce is not set
37 - to false, 'git clean' will refuse to run unless given -f, -n or
38 - -i.
37 + to false, 'git clean' will refuse to delete files or directories
38 + unless given -f, -n or -i. Git will refuse to delete directories
39 + with .git sub directory or file unless a second -f
40 + is given. This affects also git submodules where the storage area
41 + of the removed submodule under .git/modules/ is not removed until
42 + -f is given twice.
43
44 -i::
45 --interactive::