- need to trap possibly weird input within etc/bashrc, etc/cshrc and
  can't easily redirect stderr in csh.

- alternative to WM_PROJECT_INST_DIR/site for systems with locked down
  installation paths (eg, when packaged as RPM or deb)

  When "$WM_PROJECT_SITE" is defined, it is used in favour of
  "$WM_PROJECT_INST_DIR/site"

This reverts commit c5bea524.

This reverts commit 2e1e671d.

- makes it easier to cut-and-paste from dictionary contents that use
  the Foam::findEtcFile expansion

- remove all corresponding logic from foamExec

- This lets foamExec use foamEtcFile as well, but debian packaging
  still needs some work

Reverted to using additional variable.

For example, within the user ~/.OpenFOAM/<VER>/prefs.sh:

    foamPrefs=`$WM_PROJECT_DIR/bin/foamEtcFile -m go prefs.sh` \
        && _foamSource $foamPrefs

could be used to write a personal adjustment that also includes the
site-wide prefs.

- Also adjusted formatting of usage to match what argList generates

Mark Olesen authored 15 years ago and Andrew Heather committed 15 years ago

- Locate user/site/shipped file with the semantics used in the
  ~OpenFOAM/fileName expansion

  - removed legacy foamDiffSourceList, foamPackChanged
  - added foamPackDoxygen for separate distribution of docs
    handles -prefix option
  - misc. cosmetic changes