setup-vice: run in /tmp for writable files, rename for consistency

.devcontainer/Dockerfile

@@ -4,7 +4,7 @@ RUN sed -i '0,/Components: main/{s/^Components: main/Components: main contrib no
 
 RUN apt-get update && apt-get -y install --no-install-recommends vice cc65 emacs vim && apt-get -y install xpra
 
-ADD vice-setup.sh /vice-setup.sh
+ADD vice-setup.sh /setup-vice.sh
 
 USER vscode
-RUN bash -x /vice-setup.sh
+RUN bash -x /setup-vice.sh

.devcontainer/vice-setup.sh → .devcontainer/setup-vice.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+cd /tmp
 VICEVERSION=$(x128 --version | sed -e 's,x128 (VICE ,,g;s,),,g')
 wget https://downloads.sourceforge.net/project/vice-emu/releases/vice-${VICEVERSION?}.tar.gz
 mkdir -p ~/.local/share/vice

Makefile

@@ -69,7 +69,7 @@ format:
 	clang-format-3.9 -i **/*.[ch]
 
 setup-vice:
-	./.devcontainer/vice-setup.sh
+	./.devcontainer/setup-vice.sh
 
 vice: package
 	x128 -config vicerc -autostart kasse.d71 +go64 -remotemonitor -80col -speed 200