Fix CI regression introduced in 2bfe549

- Typo
- Travis does not have libc6:i386

setup.sh

@@ -6,8 +6,8 @@ if uname | grep -i Linux &>/dev/null; then
     sudo apt-get -y install python-dev python3-dev python-pip python3-pip libglib2.0-dev libc6-dbg
 
     if uname -m | grep x86_64 > /dev/null; then
-        sudo apt-get install libc6-dbg:i386
-    done
+        sudo apt-get install libc6-dbg:i386 || true
+    fi
 fi
 
 # Update all submodules