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[PATCH] [OBV] Make NEWS entry and manual regarding GDBHISTSIZE more consistent


... by mentioning in the manual that setting GDBHISTSIZE to the empty
string disables truncation, like the NEWS entry does.

Committed as obvious.

gdb/doc/ChangeLog:

	* gdb.texinfo (Command History): Mention that setting
	GDBHISTSIZE to the empty string disables history truncation.
---
 gdb/doc/gdb.texinfo | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 9889b69..c9a532a 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -22641,9 +22641,9 @@ Stop recording command history in a file.
 Set the number of commands which @value{GDBN} keeps in its history list.
 This defaults to the value of the environment variable @env{GDBHISTSIZE}, or
 to 256 if this variable is not set.  Non-numeric values of @env{GDBHISTSIZE}
-are ignored.  If @var{size} is @code{unlimited} or if @env{GDBHISTSIZE} is a
-negative number, the number of commands @value{GDBN} keeps in the history list
-is unlimited.
+are ignored.  If @var{size} is @code{unlimited} or if @env{GDBHISTSIZE} is
+either a negative number or the empty string, then the number of commands
+@value{GDBN} keeps in the history list is unlimited.
 @end table
 
 History expansion assigns special meaning to the character @kbd{!}.
-- 
2.4.4.410.g43ed522.dirty


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