hashmap: add string interning API

diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt
index 27c716b15f5de5103eb6afe4b23a5a5a84a1fd7f..f352a9b22e3138fa674c393d99d420de4f2ff144 100644 (file)
--- a/Documentation/technical/index-format.txt
+++ b/Documentation/technical/index-format.txt
@@ -12,7 +12,7 @@ Git index format
        The signature is { 'D', 'I', 'R', 'C' } (stands for "dircache")
 
      4-byte version number:
-       The current supported versions are 2 and 3.
+       The current supported versions are 2, 3 and 4.
 
      32-bit number of index entries.
 
@@ -93,8 +93,8 @@ Git index format
     12-bit name length if the length is less than 0xFFF; otherwise 0xFFF
     is stored in this field.
 
-  (Version 3) A 16-bit field, only applicable if the "extended flag"
-  above is 1, split into (high to low bits).
+  (Version 3 or later) A 16-bit field, only applicable if the
+  "extended flag" above is 1, split into (high to low bits).
 
     1-bit reserved for future
 
@@ -175,7 +175,7 @@ Git index format
 
   A conflict is represented in the index as a set of higher stage entries.
   When a conflict is resolved (e.g. with "git add path"), these higher
-  stage entries will be removed and a stage-0 entry with proper resoluton
+  stage entries will be removed and a stage-0 entry with proper resolution
   is added.
 
   When these higher stage entries are removed, they are saved in the