NOTE: We've already done this for the mingw32 package in rev. 807068ce, which
was prompted by a recent upgrade of the dlfcn package in msys2 which no longer
ships that dll.

However, it seems that the new dlfcn package also breaks Gem. At present,
no-one knows what the actual issue with Gem is. But for the time being we have
to downgrade the mingw-w64-i686-dlfcn package from 1.2.0-2 to 1.2.0-1 (which
is known to work with Gem), until a future update of msys2 fixes the issue,
or we figure out a way to work around it in Gem.

Our inno Makefile assumed lua53, but lua54 is the version that msys2 has after
a recent update. So we now use a glob pattern in the Makefile to catch any
version of the lua dll that msys2 currently has.

This is needed to make builds on Arch work again.

Add a reminder to upgrade packages and add a line break to improve
readability (make a line code as code appearance).

Fix - Punctuations

See merge request jwilkes/purr-data!614

Not sure what this was used for. Could have been a remnant from ancient
Pd-extended builds where libdl was required to dynamically load at all,
but that's a shot in the dark.

Anyway, if we get reports in a future release of some external randomly
refusing to load under Windows, we may want to test whether this change
is the culprit.