From 9d2f4cf7a781b89bd1e986c7cc990ef3364e4966 Mon Sep 17 00:00:00 2001
From: Sam Thursfield <sam.thursfield@codethink.co.uk>
Date: Tue, 12 Apr 2016 14:10:36 +0100
Subject: [PATCH] Fix infinite loop when bad command line arguments are passed

I called `aboriginal-start --cpu` and the script got stuck in an
infinite loop. With this patch, it exits and outputs the --help
message instead.
---
 aboriginal-start | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/aboriginal-start b/aboriginal-start
index 87fd911..0d965df 100755
--- a/aboriginal-start
+++ b/aboriginal-start
@@ -35,20 +35,24 @@ while : ; do
 	    shift ;;
 
 	-d|--directory)
-	    SB_DIRECTORY=${2};
-	    shift 2 ;;
+	    shift;
+	    SB_DIRECTORY=${1};
+	    shift ;;
 
 	-w|--workdir)
-	    SB_WORKDIR=${2};
-	    shift 2 ;;
+	    shift;
+	    SB_WORKDIR=${1};
+	    shift ;;
 
 	-e|--emulator)
-	    SB_EMULATOR=${2};
-	    shift 2 ;;
+	    shift;
+	    SB_EMULATOR=${1};
+	    shift ;;
 
 	-c|--cpus)
-	    SB_CPUS=${2};
-	    shift 2 ;;
+	    shift;
+	    SB_CPUS=${1};
+	    shift ;;
 
 	-s|--silent)
 	    SB_SILENT=true;