t / t4135 / diff-with quote.diffon commit docs: Explain the purpose of fetch's and pull's <refspec> parameter. (db4e411)
   1--- "postimage".txt.orig        2010-08-18 20:13:31.744002255 -0500
   2+++ "postimage".txt     2010-08-18 20:13:31.744002255 -0500
   3@@ -1 +1 @@
   4-preimage
   5+postimage