[PATCH v2 2/5] merge-tree: remove redundant code

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

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

real_merge() only ever returns "0" or "1" as it dies if the merge status
is less than zero. Therefore the check for "result < 0" is redundant and
the result variable is not needed. The return value of real_merge() is
ignored because exit status of "git merge-tree --stdin" is "0" for both
successful and conflicted merges (the status of each merge is written to
stdout). The return type of real_merge() is not changed as it is used
for the program's exit status when "--stdin" is not given.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 builtin/merge-tree.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index 57f4340faba..3c73482f2b0 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -601,7 +601,6 @@ int cmd_merge_tree(int argc,
 		line_termination = '\0';
 		while (strbuf_getline_lf(&buf, stdin) != EOF) {
 			struct strbuf **split;
-			int result;
 			const char *input_merge_base = NULL;
 
 			split = strbuf_split(&buf, ' ');
@@ -618,16 +617,14 @@ int cmd_merge_tree(int argc,
 			if (input_merge_base && split[2] && split[3] && !split[4]) {
 				strbuf_rtrim(split[2]);
 				strbuf_rtrim(split[3]);
-				result = real_merge(&o, input_merge_base, split[2]->buf, split[3]->buf, prefix);
+				real_merge(&o, input_merge_base, split[2]->buf, split[3]->buf, prefix);
 			} else if (!input_merge_base && !split[2]) {
-				result = real_merge(&o, NULL, split[0]->buf, split[1]->buf, prefix);
+				real_merge(&o, NULL, split[0]->buf, split[1]->buf, prefix);
 			} else {
 				die(_("malformed input line: '%s'."), buf.buf);
 			}
 			maybe_flush_or_die(stdout, "stdout");
 
-			if (result < 0)
-				die(_("merging cannot continue; got unclean result of %d"), result);
 			strbuf_list_free(split);
 		}
 		strbuf_release(&buf);
-- 
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