send-email: simplify Gmail example in the documentation

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 3d6f1db9da95cefa02391792500b9577d4ca9902..d934a2441724332d9e8cebd7679788ee3a660fce 100755 (executable)
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -1087,6 +1087,20 @@ test_expect_success 'git -c complains about empty key and value' '
        test_must_fail git -c "" rev-parse
 '
 
+test_expect_success 'multiple git -c appends config' '
+       test_config alias.x "!git -c x.two=2 config --get-regexp ^x\.*" &&
+       cat >expect <<-\EOF &&
+       x.one 1
+       x.two 2
+       EOF
+       git -c x.one=1 x >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'git -c is not confused by empty environment' '
+       GIT_CONFIG_PARAMETERS="" git -c x.one=1 config --list
+'
+
 test_expect_success 'git config --edit works' '
        git config -f tmp test.value no &&
        echo test.value=yes >expect &&