patch 7.4.1401

Problem:    Having 'autochdir' set during startup and using diff mode doesn't
            work. (Axel Bender)
Solution:   Don't use 'autochdir' while still starting up. (Christian
            Brabandt)

src/buffer.c

@@ -1615,11 +1615,14 @@ enter_buffer(buf_T *buf)
 #if defined(FEAT_AUTOCHDIR) || defined(PROTO)
 /*
  * Change to the directory of the current buffer.
+ * Don't do this while still starting up.
  */
     void
 do_autochdir(void)
 {
-    if (curbuf->b_ffname != NULL && vim_chdirfile(curbuf->b_ffname) == OK)
+    if (starting == 0
+	    && curbuf->b_ffname != NULL
+	    && vim_chdirfile(curbuf->b_ffname) == OK)
 	shorten_fnames(TRUE);
 }
 #endif

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1401,
 /**/
     1400,
 /**/