git-diff-files [<pattern>...]::
compares the index and the files on the filesystem.
-The "git-diff-tree" command begins its ouput by printing the hash of
+The "git-diff-tree" command begins its output by printing the hash of
what is being compared. After that, all the commands print one output
line per changed file.
. sha1 for "dst"; 0\{40\} if creation, unmerged or "look at work tree".
. a space.
. status, followed by optional "score" number.
-. a tab or a NUL when '-z' option is used.
+. a tab or a NUL when `-z` option is used.
. path for "src"
-. a tab or a NUL when '-z' option is used; only exists for C or R.
+. a tab or a NUL when `-z` option is used; only exists for C or R.
. path for "dst"; only exists for C or R.
-. an LF or a NUL when '-z' option is used, to terminate the record.
+. an LF or a NUL when `-z` option is used, to terminate the record.
Possible status letters are:
Status letters C and R are always followed by a score (denoting the
percentage of similarity between the source and target of the move or
-copy), and are the only ones to be so.
+copy). Status letter M may be followed by a score (denoting the
+percentage of dissimilarity) for file rewrites.
<sha1> is shown as all 0's if a file is new on the filesystem
and it is out of sync with the index.
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"git-diff-tree", "git-diff-files" and "git-diff --raw"
-can take '-c' or '--cc' option
+can take `-c` or `--cc` option
to generate diff output also for merge commits. The output differs
from the format described above in the following way: