Merge branch 'maint'

* maint:
  Update draft release notes to 1.8.1.5
  Documentation/submodule: Add --force to update synopsis

Documentation/RelNotes/1.8.1.5.txt

@@ -1,9 +1,13 @@
 Git 1.8.1.5 Release Notes
 =========================
 
-Fixes since v1.8.1.5
+Fixes since v1.8.1.4
 --------------------
 
+ * Given a string with a multi-byte character that begins with '-' on
+   the command line where an option is expected, the option parser
+   used just one byte of the unknown letter when reporting an error.
+
  * "git apply --summary" has been taught to make sure the similarity
    value shown in its output is sensible, even when the input had a
    bogus value.

Documentation/git-submodule.txt

@@ -13,8 +13,9 @@ SYNOPSIS
 	      [--reference <repository>] [--] <repository> [<path>]
 'git submodule' [--quiet] status [--cached] [--recursive] [--] [<path>...]
 'git submodule' [--quiet] init [--] [<path>...]
-'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch] [--rebase]
+'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch]
-	      [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
+	      [-f|--force] [--rebase] [--reference <repository>]
+	      [--merge] [--recursive] [--] [<path>...]
 'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>]
 	      [commit] [--] [<path>...]
 'git submodule' [--quiet] foreach [--recursive] <command>