diff: reject unknown change class given to --diff-filter

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 3bec0368831a04bc3653f11d3a0b1bff5a335907..50d46e1a7bae054d7c1afdeb01b9174a3a9c7002 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -42,8 +42,16 @@ CONFIGURATION
 grep.lineNumber::
        If set to true, enable '-n' option by default.
 
+grep.patternType::
+       Set the default matching behavior. Using a value of 'basic', 'extended',
+       'fixed', or 'perl' will enable the '--basic-regexp', '--extended-regexp',
+       '--fixed-strings', or '--perl-regexp' option accordingly, while the
+       value 'default' will return to the default matching behavior.
+
 grep.extendedRegexp::
-       If set to true, enable '--extended-regexp' option by default.
+       If set to true, enable '--extended-regexp' option by default. This
+       option is ignored when the 'grep.patternType' option is set to a value
+       other than 'default'.
 
 
 OPTIONS
@@ -53,7 +61,7 @@ OPTIONS
        blobs registered in the index file.
 
 --no-index::
-       Search files in the current directory that is not managed by git.
+       Search files in the current directory that is not managed by Git.
 
 --untracked::
        In addition to searching in the tracked files in the working