Update messages in preparation for i18n

Many messages will be marked for translation in the following
commits. This commit updates some of them to be more consistent and
reduce diff noise in those commits. Changes are

- keep the first letter of die(), error() and warning() in lowercase
- no full stop in die(), error() or warning() if it's single sentence
  messages
- indentation
- some messages are turned to BUG(), or prefixed with "BUG:" and will
  not be marked for i18n
- some messages are improved to give more information
- some messages are broken down by sentence to be i18n friendly
  (on the same token, combine multiple warning() into one big string)
- the trailing \n is converted to printf_ln if possible, or deleted
  if not redundant
- errno_errno() is used instead of explicit strerror()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/reflog-walk.c b/reflog-walk.c
index 5008bbf..e0048a8 100644
--- a/reflog-walk.c
+++ b/reflog-walk.c
@@ -128,7 +128,7 @@ int add_reflog_for_walk(struct reflog_walk_info *info,
 	enum selector_type selector = SELECTOR_NONE;
 
 	if (commit->object.flags & UNINTERESTING)
-		die ("Cannot walk reflogs for %s", name);
+		die("cannot walk reflogs for %s", name);
 
 	branch = xstrdup(name);
 	if (at && at[1] == '{') {
@@ -153,7 +153,7 @@ int add_reflog_for_walk(struct reflog_walk_info *info,
 			free(branch);
 			branch = resolve_refdup("HEAD", 0, NULL, NULL);
 			if (!branch)
-				die ("No current branch");
+				die("no current branch");
 
 		}
 		reflogs = read_complete_reflog(branch);