removed windows and linux split subdir

.antidote/tests/test_cmd_install.md

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+# antidote installs tests
+
+## Setup
+
+```zsh
+% source ./tests/_setup.zsh
+% source ./antidote.zsh
+%
+```
+
+## Install Command
+
+`antidote install` requires a `<bundle>` argument.
+
+```zsh
+% antidote install  #=> --exit 1
+antidote: error: required argument 'bundle' not provided, try --help
+%
+```
+
+Trying to install an existing bundle fails.
+
+```zsh
+% antidote install foo/bar &>/dev/null  #=> --exit 1
+% antidote install foo/bar 2>&1 | subenv ANTIDOTE_HOME >&2
+antidote: error: foo/bar already installed: $ANTIDOTE_HOME/foo/bar
+%
+```
+
+Install a bundle
+
+```zsh
+% antidote install rupa/z | subenv ZDOTDIR
+# antidote cloning rupa/z...
+Adding bundle to '$ZDOTDIR/.zsh_plugins.txt':
+rupa/z
+% tail -n 1 $ZDOTDIR/.zsh_plugins.txt
+rupa/z
+%
+```
+
+Install a complicated bundle
+
+```zsh
+% antidote install --path plugins/macos --conditional is-macos ohmyzsh/ohmyzsh | subenv ZDOTDIR
+# antidote cloning ohmyzsh/ohmyzsh...
+Adding bundle to '$ZDOTDIR/.zsh_plugins.txt':
+ohmyzsh/ohmyzsh path:plugins/macos conditional:is-macos
+% tail -n 1 $ZDOTDIR/.zsh_plugins.txt
+ohmyzsh/ohmyzsh path:plugins/macos conditional:is-macos
+%
+```
+
+## Teardown
+
+```zsh
+% t_teardown
+%
+```