- -mv claws-mail-manual.html claws-mail-manual.html.raw
- -sed 's,^><META,><META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"><META,' < claws-mail-manual.html.raw > claws-mail-manual.html
+ -mv -f claws-mail-manual.html claws-mail-manual.html.raw
+ -$(SED) 's,^><META,><META http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"><META,' < claws-mail-manual.html.raw > claws-mail-manual.html