--------------------------
When "git-diff-index", "git-diff-tree", or "git-diff-files" are run
-with a '-p' option, "git diff" without the '--raw' option, or
+with a `-p` option, "git diff" without the `--raw` option, or
"git log" with the "-p" option, they
do not produce the output described above; instead they produce a
patch file. You can customize the creation of such patches via the
-GIT_EXTERNAL_DIFF and the GIT_DIFF_OPTS environment variables.
+`GIT_EXTERNAL_DIFF` and the `GIT_DIFF_OPTS` environment variables.
What the -p option produces is slightly different from the traditional
diff format:
------------
1. It is preceded with a "git diff" header, that looks like
- this (when '-c' option is used):
+ this (when `-c` option is used):
diff --combined file
+
-or like this (when '--cc' option is used):
+or like this (when `--cc` option is used):
diff --cc file