[PATCH] Add missing inside_work_tree setting in setup_git_directory_gently

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

When both GIT_DIR and GIT_WORK_TREE are set, and
setup_git_directory_gently() changes the current working
directory accordingly, it should also set inside_work_tree = 1.

Without this, work_tree handling code in setup_git_directory()
will be activated. If you stay in root work tree (no prefix),
it does not harm. It does if you work from a subdirectory though.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Updated commit message accordingly

 setup.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/setup.c b/setup.c
index 145eca5..6f8f769 100644
--- a/setup.c
+++ b/setup.c
@@ -240,6 +240,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
 			if (chdir(work_tree_env) < 0)
 				die ("Could not chdir to %s", work_tree_env);
 			strcat(buffer, "/");
+			inside_work_tree = 1;
 			return retval;
 		}
 		if (nongit_ok) {
-- 
1.5.3.rc4.3.gab089