Remove unnecessary quotes and curly braces.
Switch to bash arrays with one entry per line for better handling.
Simplify meson calls to adhere to packaging guidelines.

The project has moved to new location with the help of the original author:
https://github.com/linux-speakup/espeakup
The project now requires espeak-ng and closes https://bugs.archlinux.org/task/65421
Upstream switched to meson.
Update maintainer info.

FTR, commands used to change arch=() and then verify the changes:

$ sed -Ei "/^arch=/{s/ *?['\"]?i686['\"]? *?//;s/ *$//}" */*/PKGBUILD*

$ grep -r i686 * | grep arch= | grep -v repos

$ svn diff | grep -A 1 ^-[^-] | grep -v -- -- | cut -c2- |
  while IFS=$'\n' read -r l1; IFS=$'\n' read -r l2; do
    echo "$l1 -> $l2"
  done | sort -u

it needs to wait for all the audio devices to be ready.

also auto-load the speakup_soft module as it is needed by espeakup.

etc/conf.d/espeakup.conf needs to be in the backup array.  How did I forget?
This package shouldn't depend on the kernel module package, per the kernel
packaging guidelines.
The upstream source archive has a very permanent download location now.
The homepage should probably be the author's github page for this project.

The old package was built before the svn transition, so it was time for a
rebuild anyway.