[glibc] manual: fix texinfo typo

[glibc] manual: fix texinfo typo

[Paul Eggert]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a778333951a2ae530dde8ff18a275155c478aec2

commit a778333951a2ae530dde8ff18a275155c478aec2
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Sat Apr 8 13:51:26 2023 -0700

    manual: fix texinfo typo
    
    * manual/creature.texi (Feature Test Macros): Fix
    “creature.texi:309: warning: `.' or `,' must follow @xref, not f”.

Diff:
---
 manual/creature.texi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/manual/creature.texi b/manual/creature.texi
index 47d1fc4607..fa5dd9d6ad 100644
--- a/manual/creature.texi
+++ b/manual/creature.texi
@@ -306,8 +306,7 @@ If this macro is defined to @math{1}, security hardening is added to
 various library functions.  If defined to @math{2}, even stricter
 checks are applied. If defined to @math{3}, @theglibc{} may also use
 checks that may have an additional performance overhead.
-@xref{Source Fortification,,Fortification of function calls} for more
-information.
+@xref{Source Fortification,,Fortification of function calls}.
 @end defvr
 
 @defvr Macro _DYNAMIC_STACK_SIZE_SOURCE