gcc/ChangeLog:
* doc/invoke.texi: Use @option for -Wuninitialized.
the security and predictability of a program by preventing uninitialized memory
disclosure and use.
GCC still considers an automatic variable that doesn't have an explicit
-initializer as uninitialized, -Wuninitialized will still report warning messages
-on such automatic variables.
+initializer as uninitialized, @option{-Wuninitialized} will still report
+warning messages on such automatic variables.
With this option, GCC will also initialize any padding of automatic variables
that have structure or union types to zeroes.