chore: regenerate po/pot for app + man pages, translate Italian (pre-3.0.0) - #902

Pre-release pot/po refresh ahead of 3.0.0, per the plan in amule-org/amule-org.github.io#4. Three commits, one logical change each so reviewers can step through them.

1 · po/amule.pot + all 37 po/<lang>.po

Driven by scripts/update-po.sh (xgettext over POTFILES.in then msgmerge into every .po). The substantive change is the 16 Windows-installer translatable strings extracted into amule.pot via the packaging/windows/installer_strings.c stub added in #899 — each catalog gains those 16 entries with empty msgstr; the installer build's po-to-nsh.py bridge flips them from English fallback to translated text as soon as a non-empty msgstr is present.

The bulk of the diff outside that is cosmetic — gettext-tools rewraps some long strings and #: source-location refs shift by a few lines as source files have moved on since the last sweep. No msgid content was lost, no existing translation discarded.

2 · docs/man/po/manpages.pot + manpages-<lang>.po

Driven by po4a --no-translations --force po4a.config in docs/man/. Two things land:

1. The stale #: source refs from docs/man: committed po/pot files are out of sync with po4a.config (stale .1 source refs) #894 now point at the templated *.1.in masters they actually come from (verified: 297 #: lines all read *.1.in, zero *.1 form remain) — in sync with po4a.config since the 5c9781e + a89d1e3 rename.
2. The new msgids introduced by the audit fixes in docs/man: bring English masters back in sync with the source (#893) #900 (--configure-autostart, --force-zlib on amulecmd/amuleweb, --disable-fatal/--enable-stdin on amulegui, the -t/--category formatting + grammar / FILES section / GD-support / optional-arg clarifications) get extracted into manpages.pot and turn up as untranslated entries in each manpages-<lang>.po.

The rest of the man-page diff is line-wrap reflow — po4a 0.74 wraps strings differently than the version that last touched the catalogs. Fuzzy markers grow only on entries whose source string genuinely changed because of the #900 audit fixes.

3 · Italian translations for the strings introduced above

Closes out the Italian gap created by the prior two commits:

• po/it.po — 14 newly translated installer-string entries (aMule (obbligatorio), Disinstalla, Crea un collegamento di aMule sul desktop., the running-process MessageBoxes, the upgrade-path DetailPrint, etc.) plus 4 fuzzy entries unfuzzied, including:

  • Uninstall had been msgmerge-mapped to the existing Installa translation — wrong direction; fixed to Disinstalla.
  • aMule application files (required). had been msgmerge-mapped to Integrazione di aMule non riuscita (unrelated); fixed to the literal File dell'applicazione aMule (obbligatori)..

• docs/man/po/manpages-it.po — 9 newly translated entries (--configure-autostart, --force-zlib, the -t/--category clarification, the cas -o/-p optional-arg + GD-support paragraphs, the aMule-online-sign.* FILES entries) plus 5 fuzzy entries on synopsis lines and the "all link found" grammar fix.

Net: post-merge, it.po is 100% translated (was 1678/4 fuzzy/14 untranslated → 1696 translated/0 fuzzy/0 untranslated) and manpages-it.po is 100% translated (was 232/5 fuzzy/9 untranslated → 246 translated/0 fuzzy/0 untranslated).

Refs

Closes #894. Refs amule-org/amule-org.github.io#4.