load_subtree(): check that `prefix_len` is in the expected range

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index cb0f6cf6782c87d7a5b08e2b75de5b4ecb2969f9..5033483db496286910dd24507f3374e18ff6c2b5 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -26,6 +26,7 @@ SYNOPSIS
           [--threads <num>]
           [-f <file>] [-e] <pattern>
           [--and|--or|--not|(|)|-e <pattern>...]
+          [--recurse-submodules] [--parent-basename <basename>]
           [ [--[no-]exclude-standard] [--cached | --no-index | --untracked] | <tree>...]
           [--] [<pathspec>...]
 
@@ -41,17 +42,17 @@ CONFIGURATION
 -------------
 
 grep.lineNumber::
-       If set to true, enable '-n' option by default.
+       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
+       '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. This
-       option is ignored when the 'grep.patternType' option is set to a value
+       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'.
 
 grep.threads::
@@ -59,7 +60,7 @@ grep.threads::
        8 threads are used by default (for now).
 
 grep.fullName::
-       If set to true, enable '--full-name' option by default.
+       If set to true, enable `--full-name` option by default.
 
 grep.fallbackToNoIndex::
        If set to true, fall back to git grep --no-index if git grep
@@ -88,6 +89,19 @@ OPTIONS
        mechanism.  Only useful when searching files in the current directory
        with `--no-index`.
 
+--recurse-submodules::
+       Recursively search in each submodule that has been initialized and
+       checked out in the repository.  When used in combination with the
+       <tree> option the prefix of all submodule output will be the name of
+       the parent project's <tree> object.
+
+--parent-basename <basename>::
+       For internal use only.  In order to produce uniform output with the
+       --recurse-submodules option, this option can be used to provide the
+       basename of a parent's <tree> object to a submodule so the submodule
+       can prefix its output with the parent's name rather than the SHA1 of
+       the submodule.
+
 -a::
 --text::
        Process binary files as if they were text.
@@ -147,8 +161,11 @@ OPTIONS
 
 -P::
 --perl-regexp::
-       Use Perl-compatible regexp for patterns. Requires libpcre to be
-       compiled in.
+       Use Perl-compatible regular expressions for patterns.
++
+Support for these types of regular expressions is an optional
+compile-time dependency. If Git wasn't compiled with support for them
+providing this option will cause it to die.
 
 -F::
 --fixed-strings::