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 --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 15f3a86e7688fd2b8dcb2c8f2ecee1c9a246d964..7d15cf94821e3bdf8fd661bec995d9e26cd5ef84 100644 (file)
--- 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