https://git.ruby-lang.org/ruby.git/commit/?id=a217d3cedc

From a217d3cedce3f5aa5c27a1ce6c72b65ec37da057 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 27 Apr 2020 00:40:43 +0900
Subject: check: compare with right upstream


diff --git a/common.mk b/common.mk
index a5e015f..616276e 100644
--- a/common.mk
+++ b/common.mk
@@ -723,8 +723,10 @@ clean-spec: PHONY https://github.com/ruby/ruby/blob/trunk/common.mk#L723
 
 check: main test test-tool test-all test-spec
 	$(ECHO) check succeeded
-	-$(Q) if [ x"$(GIT)" != x ] && $(CHDIR) "$(srcdir)" && $(GIT) rev-parse > /dev/null 2>&1; then \
-	  set -x; $(GIT) --no-pager log --format=oneline -G "^ *# *include" origin/master..HEAD; \
+	-$(Q) if [ x"$(GIT)" != x ] && $(CHDIR) "$(srcdir)" && \
+	    b=`$(GIT) symbolic-ref --short HEAD 2>&1` && \
+	    u=`$(GIT) branch --list --format='%(upstream:short)' $$b`; then \
+	  set -x; $(GIT) --no-pager log --format=oneline -G "^ *# *include" $$u..HEAD --; \
 	fi
 check-ruby: test test-ruby
 
-- 
cgit v0.10.2


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