Update fish deps, fix deb install

install/02-fish.sh

@@ -17,7 +17,7 @@ if ! [ -f "$fisher_location" ]; then
     curl https://git.io/fisher --create-dirs -sLo "$fisher_location"
 fi
 echo "fisher is installed, updating..."
-`fish -c "fisher"`;
+fish -c "fisher update";
 
 fish -c "fisher --version"
 
@@ -25,10 +25,12 @@ if not_installed "fishlogin"; then
     echo "setting up fishlogin..."
     mkdir -p ~/bin
     target="$HOME/bin/fishlogin"
+
     tee -a $target << END
 #!/bin/bash
 exec -l fish "\$@"
 END
+
     sudo chmod +x $target
     echo $target | sudo tee -a /etc/shells
     sudo usermod -s $target $USER