Make standard options customizable.

* magit.el (magit-git-standard-options): Here, by using defcustom.

NEWS

@@ -34,17 +34,18 @@ Changes in magit 0.7:
 
 * Magit understands a bit of git-svn: the status buffer shows unpushed
   and unpulled commits, 'N r' runs git svn rebase, and 'N c' runs git
-  svn commit.
+  svn dcommit.
 
 * Magit now also works when the direcory is accessed via tramp.
 
 * M-x magit-status can also create new repositories when given a
   directory that is not a Git repository.
 
-* Magit works better with oldish Gits that don't understand "--graph"
+* Magit works better with oldish Gits that don't understand "--graph",
   for example.
 
-* The name of the Git program can be customized.
+* The name of the Git program and common options for it can be
+  customized.
 
 Changes in magit 0.6:
 

magit.el

@@ -66,6 +66,11 @@
   :group 'magit
   :type 'string)
 
+(defcustom magit-git-standard-options '("--no-pager")
+  "Standard options when running Git."
+  :group 'magit
+  :type '(repeat string))
+
 (defcustom magit-save-some-buffers t
   "Non-nil means that \\[magit-status] will save modified buffers before running.
 Setting this to t will ask which buffers to save, setting it to 'dontask will
@@ -186,8 +191,6 @@ Many Magit faces inherit from this one by default."
   "Face for branch head labels shown in log buffer."
   :group 'magit)
 
-(defconst magit-git-standard-options '("--no-pager"))
-
 ;;; Macros
 
 (defmacro magit-with-refresh (&rest body)