apply-from-lore: allow specifying non-Git URLs

The public-inbox system is used for all kinds of projects that still use
that quaint mailing-list centric patch contribution process, not only
for Git.

For example, Cygwin uses it, too.

The `apply-from-lore.sh` script already allowed applying individual
patches from other projects' public-inbox URLs.

With this change, it is now also possible to apply patch _series_ from
such public-inbox URLs, such as
https://inbox.sourceware.org/cygwin-patches/[email protected]/

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

apply-from-lore.sh

@@ -89,8 +89,7 @@ do
 					s/^href="\.\.\/\([^"]*\).*/\1/p;q
 				}' <"$OUT2")"
 			test -n "$URL3" || break
-			curl -f https://lore.kernel.org/git/${URL3%/}/raw \
-				>>"$OUT3" ||
+			curl -f "${URL%/*/raw}/${URL3%/}/raw" >>"$OUT3" ||
 			die "Could not retrieve $URL3" >&2
 			NO=$(($NO+1))
 		done