My vim setup apparently has broken out of nothing. It now spills errors for every single plugin I have configured. This started happening after I have changed some appearance settings, some syntastic features (both of which I don't think are the cause) and changed my shell to fish (this MAYBE is the cause).
Using the directive set shell=/usr/bin/fish
or set shell=fish
does not change anything, it still fails, for which I tried after reading this question.
The errors happen for both :BundleInstall
and :BundleUpdate
. My full vimrc file is available here if there is need to read it, it's not long.