scripted-diff: Replace strprintf(Untranslated) with Untranslated(strprintf)

This makes code more consistent and makes it easier to add compile-time checking to
enforce that format strings contain the right specifiers, because it stops
using Untranslated() to create the format string, so the Untranslated()
function will not need to get involved in formatting.

-BEGIN VERIFY SCRIPT-
quote='"[^"]+"'
quotes="(?:$quote|\\s)*"
nonparens="[^()]*"
single_level_paren="\($nonparens\)"
double_level_paren="\($nonparens\($nonparens\)$nonparens\)"
exprs="(?:$double_level_paren|$single_level_paren|$nonparens)*"
git grep -l 'Untranslated' | xargs perl -0777 -i -pe "s/strprintf\((\\W*)Untranslated\(($quotes)\)($exprs)(\))/Untranslated(\1strprintf(\2\3))/gs"
-END VERIFY SCRIPT-

src/test/result_tests.cpp

@@ -42,7 +42,7 @@ util::Result<int> IntFn(int i, bool success)
 util::Result<bilingual_str> StrFn(bilingual_str s, bool success)
 {
     if (success) return s;
-    return util::Error{strprintf(Untranslated("str %s error."), s.original)};
+    return util::Error{Untranslated(strprintf("str %s error.", s.original))};
 }
 
 util::Result<NoCopy> NoCopyFn(int i, bool success)