Add to documentation of git-update-index arguments and usage.

Removed unknown [--version] option.

Signed-off-by: Chris Shoemaker <c.shoemaker@cox.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-update-index.txt

@@ -9,15 +9,13 @@ git-update-index - Modifies the index or directory cache
 SYNOPSIS
 --------
 'git-update-index'
-	     [--add] [--remove] [--unmerged] [--refresh] [--replace]
+	     [--add] [--remove | --force-remove] [--replace] 
+	     [--refresh [-q] [--unmerged] [--ignore-missing]]
 	     [--cacheinfo <mode> <object> <file>]\*
 	     [--chmod=(+|-)x]
-	     [--info-only]
-	     [--force-remove]
-	     [--stdin]
-	     [--index-info]
-	     [--ignore-missing]
-	     [-z]
+	     [--info-only] [--index-info]
+	     [-z] [--stdin]
+	     [--verbose]
 	     [--] [<file>]\*
 
 DESCRIPTION
@@ -45,12 +43,28 @@ OPTIONS
 	Looks at the current cache and checks to see if merges or
 	updates are needed by checking stat() information.
 
+-q::
+        Quiet.  If --refresh finds that the cache needs an update, the
+        default behavior is to error out.  This option makes
+        git-update-index continue anyway.
+
+--unmerged::
+        If --refresh finds unmerged changes in the cache, the default 
+        behavior is to error out.  This option makes git-update-index 
+        continue anyway.
+
 --ignore-missing::
 	Ignores missing files during a --refresh
 
 --cacheinfo <mode> <object> <path>::
 	Directly insert the specified info into the cache.
 	
+--index-info::
+        Read index info from stdin.
+
+--chmod=(+|-)x::
+        Set the execute permissions on the updated files.        
+
 --info-only::
 	Do not create objects in the object database for all
 	<file> arguments that follow this flag; just insert
@@ -73,6 +87,9 @@ OPTIONS
 	read list of paths from the standard input.  Paths are
 	separated by LF (i.e. one path per line) by default.
 
+--verbose::
+        Report what is being added and removed from index.
+
 -z::
 	Only meaningful with `--stdin`; paths are separated with
 	NUL character instead of LF.

update-index.c

@@ -393,7 +393,7 @@ static void read_index_info(int line_termination)
 }
 
 static const char update_index_usage[] =
-"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--cacheinfo] [--chmod=(+|-)x] [--info-only] [--force-remove] [--stdin] [--index-info] [--ignore-missing] [-z] [--version] [--] <file>...";
+"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--cacheinfo] [--chmod=(+|-)x] [--info-only] [--force-remove] [--stdin] [--index-info] [--ignore-missing] [-z] [--verbose] [--] <file>...";
 
 int main(int argc, const char **argv)
 {