do not include the same header twice

A few files include the same header file directly more than once.

As all these headers protect themselves against repeated inclusion
by the "#ifndef FOO_H / #define FOO_H / ... / #endif" idiom, leave
only the first inclusion and remove the later inclusion as a no-op
clean-up.

Signed-off-by: Дилян Палаузов <git-dpa@aegee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/trailer.c b/trailer.c
index 623adeb..05b3859 100644
--- a/trailer.c
+++ b/trailer.c
@@ -1,7 +1,6 @@
 #include "cache.h"
 #include "string-list.h"
 #include "run-command.h"
-#include "string-list.h"
 #include "commit.h"
 #include "trailer.h"
 /*