updated for version 7.4.568

Problem:    Giving an error for ":0wincmd w" is a problem for some plugins.
Solution:   Allow the zero in the range. (Marcin Szamotulski)

src/ex_docmd.c

@@ -4686,8 +4686,7 @@ invalid_range(eap)
 		    return (char_u *)_(e_invrange);
 		break;
 	    case ADDR_WINDOWS:
-		if (eap->line1 < 1
-			|| eap->line2 > LAST_WIN_NR)
+		if (eap->line2 > LAST_WIN_NR)
 		    return (char_u *)_(e_invrange);
 		break;
 	    case ADDR_TABS:

src/testdir/test_command_count.ok

@@ -21,8 +21,8 @@ LocalRangeLines 2 5
 4argu d
 1argu a
 100b E16: Invalid range
-0close E16: Invalid range
-$close 4
+0close 
+$close 3
 $+close E16: Invalid range
 $tabe 2
 $+tabe E16: Invalid range

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    568,
 /**/
     567,
 /**/