[PATCH 4/4] Makefile: add xgettext target for *.sh files

Change the "pot" target to also extract strings from our $(SCRIPT_SH) files with xgettext(1).

Note that due to Jonathan Nieder's trick of doing "mv $@+ $@" at the end of the target the "pot" target will now warn:

    $ make pot
        XGETTEXT po/git.pot
    po/git.pot+: warning: Charset "CHARSET" is not a portable encoding name.
                          Message conversion to user's charset might not work.

This warnings is emitted because xgettext is writing into a non-*.pot file, it's harmless however. The content that's written out is equivalent to what it would be if we were writing directly into an existing POT file with --join-existing.

As part of this change I've eliminated the && chain between xgettext calls, this is incompatible with $(QUIET_XGETTEXT), if the && is left in it'll emit:

    /bin/sh: @echo: not found

Since it's redundant (the Makefile will stop if there's an error) I've removed it altogether.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
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 Makefile |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)