[PATCH 3/5] reset_head(): mark oid parameter as const

["Phillip Wood via GitGitGadget" <gitgitgadget@gmail.com>]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

We do not write to oid so mark it as const in preparation for the next
commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 reset.c | 4 ++--
 reset.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/reset.c b/reset.c
index 4bea758053b..5b578d6bb68 100644
--- a/reset.c
+++ b/reset.c
@@ -8,8 +8,8 @@
 #include "tree.h"
 #include "unpack-trees.h"
 
-int reset_head(struct repository *r, struct object_id *oid, const char *action,
-	       const char *switch_to_branch, unsigned flags,
+int reset_head(struct repository *r, const struct object_id *oid,
+	       const char *action, const char *switch_to_branch, unsigned flags,
 	       const char *reflog_orig_head, const char *reflog_head,
 	       const char *default_reflog_action)
 {
diff --git a/reset.h b/reset.h
index 12f83c78e28..6d2be511b8c 100644
--- a/reset.h
+++ b/reset.h
@@ -12,8 +12,8 @@
 #define RESET_HEAD_REFS_ONLY (1<<3)
 #define RESET_ORIG_HEAD (1<<4)
 
-int reset_head(struct repository *r, struct object_id *oid, const char *action,
-	       const char *switch_to_branch, unsigned flags,
+int reset_head(struct repository *r, const struct object_id *oid,
+	       const char *action, const char *switch_to_branch, unsigned flags,
 	       const char *reflog_orig_head, const char *reflog_head,
 	       const char *default_reflog_action);
 
-- 
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