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Incompatibilites between 5.0.8 and 5.1:
bracketed-paste-magic may also be necessary in order to apply url-quote-magic.

Reference: 
https://github.com/zsh-users/zsh/blob/a9df6aaa702abf761b155cd842a7f6917be44139/Functions/Zle/url-quote-magic#L11

Partially fixes #3614

LANG is a colon-separated list of prefered locales; LC_CTYPE is single entry,
therefore we need to remove all but one entry.

Also, there is no need setting it if it is already set (LC_ALL also sets
LC_CTYPE, so we check it too).

There were only three aliases left in aliases.zsh
File deleted!

This means we are running it after $PATH has potentially been set up,
which means it's more likely that commands like "git" will be found