-Either an option to pass to grep or git\-ls\-files\&. Some grep options, such as \-C and \-m, that take parameters are known to git\-grep\&.
+Either an option to pass to grep or git\-ls\-files\&.
+
+.nf
+The following are the specific `git\-ls\-files` options
+that may be given: `\-o`, `\-\-cached`, `\-\-deleted`, `\-\-others`,
+`\-\-killed`, `\-\-ignored`, `\-\-modified`, `\-\-exclude=*`,
+`\-\-exclude\-from=*`, and `\-\-exclude\-per\-directory=*`\&.
+.fi
+
+.nf
+All other options will be passed to `grep`\&.
+.fi