t / t4135 / git-plain.diffon commit format-patch: RFC 2047 says multi-octet character may not be split (6cd3c05)
   1diff --git a/postimage.txt b/postimage.txt
   2new file mode 100644
   3index 0000000..eff0c54
   4--- /dev/null
   5+++ b/postimage.txt
   6@@ -0,0 +1 @@
   7+postimage