Fix comparison in deploy.sh

This is not perl, so -ne does _arithmetic_ comparison, not string. And
since that is in an if, it does not break the script…

deploy.sh

@@ -26,7 +26,7 @@ fi
 currentbranch="$(git branch --format '%(refname:short)')"
 
 # If we are not on target branch, switch and run again
-if test "$currentbranch" -ne "$branch"; then
+if test "$currentbranch" '!=' "$branch"; then
 	exec /bin/sh -eu "git checkout $branch && exec $0"
 fi