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

[Patrick Palka <patrick at parcs dot ath dot cx>]

... 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