patch 8.0.0560: :windo allows for ! but it's not supported
Problem: :windo allows for ! but it's not supported.
Solution: Disallow passing !. (Hirohito Higashi)
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 88dfbb9..531bd0e 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -1623,7 +1623,7 @@
NEEDARG|WORD1|RANGE|NOTADR,
ADDR_WINDOWS),
EX(CMD_windo, "windo", ex_listdo,
- BANG|NEEDARG|EXTRA|NOTRLCOM|RANGE|NOTADR|DFLALL,
+ NEEDARG|EXTRA|NOTRLCOM|RANGE|NOTADR|DFLALL,
ADDR_WINDOWS),
EX(CMD_winpos, "winpos", ex_winpos,
EXTRA|TRLBAR|CMDWIN,