doc : Fix build error from r11-4972.

Some tex tools don't allow the @r{} command to be split across
lines.  Fixed by making the change occupy a long line.

gcc/ChangeLog:

	* doc/extend.texi: Don't try to line-wrap an @r command.

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 4e5197fc038fa0762fd5028f29864e8af6a5de46..4ddbf80a2295ab1b8c09ea072e6ee0236e697b1e 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -7429,8 +7429,7 @@ data in this way can reduce program startup times.  This attribute is
 specific to ELF targets and relies on the linker to place such data in
 the right location
 
-@item objc_nullability (@var{nullability kind}) @r{(Objective-C and Objective
--C++ only)}
+@item objc_nullability (@var{nullability kind}) @r{(Objective-C and Objective-C++ only)}
 @cindex @code{objc_nullability} variable attribute
 This attribute applies to pointer variables only.  It allows marking the
 pointer with one of four possible values describing the conditions under