Correct new compiler warnings in builtin-revert

The new builtin-revert code introduces a few new compiler errors
when I'm building with my stricter set of checks enabled in CFLAGS.
These all just stem from trying to store a constant string into
a non-const char*.  Simple fix, make the variables const char*.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/cache.h b/cache.h
index f172d02a6..4f1066744 100644
--- a/cache.h
+++ b/cache.h
@@ -449,7 +449,7 @@ extern int check_repository_format_version(const char *var, const char *value);
 extern char git_default_email[MAX_GITNAME];
 extern char git_default_name[MAX_GITNAME];
 
-extern char *git_commit_encoding;
+extern const char *git_commit_encoding;
 extern const char *git_log_output_encoding;
 
 extern int copy_fd(int ifd, int ofd);