E477 error in :all! and :sall! (vim-jp/Issue#153)

gistfile1.diff

diff -r 0dabc2ce136c src/ex_cmds.h
--- a/src/ex_cmds.h	Tue Jan 10 22:31:32 2012 +0100
+++ b/src/ex_cmds.h	Sun Jan 29 03:40:01 2012 +0900
@@ -102,7 +102,7 @@
 EX(CMD_aboveleft,	"aboveleft",	ex_wrongmodifier,
 			NEEDARG|EXTRA|NOTRLCOM),
 EX(CMD_all,		"all",		ex_all,
-			RANGE|NOTADR|COUNT|TRLBAR),
+			BANG|RANGE|NOTADR|COUNT|TRLBAR),
 EX(CMD_amenu,		"amenu",	ex_menu,
 			RANGE|NOTADR|ZEROR|EXTRA|TRLBAR|NOTRLCOM|USECTRLV|CMDWIN),
 EX(CMD_anoremenu,	"anoremenu",	ex_menu,
@@ -798,7 +798,7 @@
 EX(CMD_sargument,	"sargument",	ex_argument,
 			BANG|RANGE|NOTADR|COUNT|EXTRA|EDITCMD|ARGOPT|TRLBAR),
 EX(CMD_sall,		"sall",		ex_all,
-			RANGE|NOTADR|COUNT|TRLBAR),
+			BANG|RANGE|NOTADR|COUNT|TRLBAR),
 EX(CMD_sandbox,		"sandbox",	ex_wrongmodifier,
 			NEEDARG|EXTRA|NOTRLCOM),
 EX(CMD_saveas,		"saveas",	ex_write,
diff -r 0dabc2ce136c src/testdir/test31.in
--- a/src/testdir/test31.in	Tue Jan 10 22:31:32 2012 +0100
+++ b/src/testdir/test31.in	Sun Jan 29 19:27:52 2012 +0900
@@ -63,6 +63,13 @@
 :" write "testtext 1"
 A 3:close!
 :w >>test.out
+:set nohidden
+:" test ":all!" hides changed buffer; write "testtext 2 2 2"
+:sp Xtest4
+GA 4
+:all!
+:1wincmd w
+:w >>test.out
 :qa!
 ENDTEST
 
diff -r 0dabc2ce136c src/testdir/test31.ok
--- a/src/testdir/test31.ok	Tue Jan 10 22:31:32 2012 +0100
+++ b/src/testdir/test31.ok	Sun Jan 29 19:27:52 2012 +0900
@@ -9,3 +9,4 @@
 testtext 1
 testtext 3 3 3
 testtext 1
+testtext 2 2 2