patch 9.0.0340: the 'cmdheight' zero support causes too much trouble
Problem: The 'cmdheight' zero support causes too much trouble.
Solution: Revert support for 'cmdheight' being zero.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 1aa5c2c..1b9ae38 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1783,18 +1783,11 @@
*'cmdheight'* *'ch'*
'cmdheight' 'ch' number (default 1)
global or local to tab page
- Number of screen lines to use for the command-line. Helps avoiding
- |hit-enter| prompts.
+ Number of screen lines to use for the command-line. A larger value
+ helps avoiding |hit-enter| prompts.
The value of this option is stored with the tab page, so that each tab
page can have a different value.
- When 'cmdheight' is zero, there is no command-line unless it is being
- used. Informative messages will be displayed in a popup notification
- window at the bottom if the window, using the MessageWindow highlight
- group {only if compiled with the +popupwin and +timers features},
- otherwise they will not be displayed. Other messages will cause the
- |hit-enter| prompt. Expect some other unexpected behavior too.
-
*'cmdwinheight'* *'cwh'*
'cmdwinheight' 'cwh' number (default 7)
global
@@ -6474,11 +6467,9 @@
45% relative position in the file
If 'rulerformat' is set, it will determine the contents of the ruler.
Each window has its own ruler. If a window has a status line, the
- ruler is shown there. If a window doesn't have a status line and
- 'cmdheight' is zero, the ruler is not shown. Otherwise it is shown in
- the last line of the screen. If the statusline is given by
- 'statusline' (i.e. not empty), this option takes precedence over
- 'ruler' and 'rulerformat'.
+ ruler is shown there. Otherwise it is shown in the last line of the
+ screen. If the statusline is given by 'statusline' (i.e. not empty),
+ this option takes precedence over 'ruler' and 'rulerformat'.
If the number of characters displayed is different from the number of
bytes in the text (e.g., for a TAB or a multibyte character), both
the text column (byte number) and the screen column are shown,
@@ -7128,7 +7119,6 @@
|+cmdline_info| feature}
Show (partial) command in the last line of the screen. Set this
option off if your terminal is slow.
- The option has no effect when 'cmdheight' is zero.
In Visual mode the size of the selected area is shown:
- When selecting characters within a line, the number of characters.
If the number of bytes is different it is also displayed: "2-6"
@@ -7178,7 +7168,6 @@
If in Insert, Replace or Visual mode put a message on the last line.
Use the 'M' flag in 'highlight' to set the type of highlighting for
this message.
- The option has no effect when 'cmdheight' is zero.
When |XIM| may be used the message will include "XIM". But this
doesn't mean XIM is really active, especially when 'imactivatekey' is
not set.