Add "const" qualifier to "char *editor_program".

Also use "git_config_string" to simplify "config.c" code
where "editor_program" is set.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/cache.h b/cache.h
index 1ecaef14c..ce7b386a4 100644
--- a/cache.h
+++ b/cache.h
@@ -614,7 +614,7 @@ extern const char *pager_program;
 extern int pager_in_use(void);
 extern int pager_use_color;
 
-extern char *editor_program;
+extern const char *editor_program;
 extern char *excludes_file;
 
 /* base85 */