[gcc r14-6428] multiflags: fix doc warning

[Alexandre Oliva]

https://gcc.gnu.org/g:07d9f2fce81a3052b5421f10149e7bd5270b5946

commit r14-6428-g07d9f2fce81a3052b5421f10149e7bd5270b5946
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Mon Dec 11 15:09:19 2023 -0300

    multiflags: fix doc warning
    
    Comply with dubious doc warning that after an @xref there must be a
    comma or a period, not a close parentheses.
    
    
    for  gcc/ChangeLog
    
            * doc/invoke.texi (multiflags): Add period after @xref to
            silence warning.

Diff:
---
 gcc/doc/invoke.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 15f3a86e768..7d15cf94821 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -20589,7 +20589,7 @@ allocation before or after interprocedural optimization.
 This option enables multilib-aware @code{TFLAGS} to be used to build
 target libraries with options different from those the compiler is
 configured to use by default, through the use of specs (@xref{Spec
-Files}) set up by compiler internals, by the target, or by builders at
+Files}.) set up by compiler internals, by the target, or by builders at
 configure time.
 
 Like @code{TFLAGS}, this allows the target libraries to be built for