[Bug fortran/69484] New: documentation issue: -Wtabs and -Wall

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69484

            Bug ID: 69484
           Summary: documentation issue: -Wtabs and -Wall
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: janus at gcc dot gnu.org
  Target Milestone: ---

There is an inconsistency in the documentation at
https://gcc.gnu.org/onlinedocs/gfortran/Error-and-Warning-Options.html.

The description of -Wall claims that it includes -Wno-tabs, while the
description of -Wtabs claims that -Wtabs is active for -Wall (and others).

One of the two must be wrong. From the behaviour of gfortran it seems that
-Wall does imply -Wtabs.