abyss 1.5.2: Change single quotes to double quotes

Closes #1404.

Signed-off-by: Shaun Jackman <sjackman@gmail.com>
abyss: add 1.5.2 bottle.
Maxima 5.34.1.
Merge branch 'maxima' of https://github.com/andrejv/homebrew-science into maxima