updated for version 7.3.1155

Problem:    MS-DOS: "make test" uses external rmdir command.
Solution:   Rename "rmdir" to "rd". (Taro Muraoka)

src/testdir/Make_dos.mak

@@ -77,5 +77,5 @@ clean:
 	-del X*
 	-del X*.*
 	-del test.ok
-	-rmdir /s /q Xfind
+	-rd /s /q Xfind
 	-if exist viminfo del viminfo

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1155,
 /**/
     1154,
 /**/