builtin/commit.c: extract ignore_non_trailer() helper function

diff --git a/t/t0020-crlf.sh b/t/t0020-crlf.sh
index 1a8f44c44ca3cce70990ec56fec61894be9b3086..e526184a0bfa3c8ad2171d0c41a7bee22cf9a04e 100755 (executable)
--- a/t/t0020-crlf.sh
+++ b/t/t0020-crlf.sh
@@ -81,6 +81,14 @@ test_expect_success 'safecrlf: print warning only once' '
        test $(git add doublewarn 2>&1 | grep "CRLF will be replaced by LF" | wc -l) = 1
 '
 
+
+test_expect_success 'safecrlf: git diff demotes safecrlf=true to warn' '
+       git config core.autocrlf input &&
+       git config core.safecrlf true &&
+       git diff HEAD
+'
+
+
 test_expect_success 'switch off autocrlf, safecrlf, reset HEAD' '
        git config core.autocrlf false &&
        git config core.safecrlf false &&