[Bug fortran/89078] [meta-bug] Improve the gfortran manual

[kargl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89078
Bug 89078 depends on bug 42607, which changed state.

Bug 42607 Summary: add information about how to compile a module
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42607

           What    |Removed                     |Added
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             Status|WAITING                     |RESOLVED
         Resolution|---                         |WONTFIX