gcc/
* c.opt (Wsynth): Deprecate.
* doc/invoke.texi (Option Summary, Warning Options): Document
-Wno-format-contains-nul.
gcc/fortran/
* invoke.texi (Error and Warning Options): Document
-Wline-truncation.
contrib/
* check_warning_flags.sh: Instead of invoke.texi, take the path
to the doc directory as argument. Check that warnings listed in
'gcc --help' are accepted by the compiler, and listed in the
manuals.
From-SVN: r133059
Ralf Wildenhues