fetch --tags: clarify documentation

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 3bec0368831a04bc3653f11d3a0b1bff5a335907..cfecf848fb330333a655b0a54d58000041b73338 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