Restore validation of version arg

Author: brianhlin

bootstrap-osg-test

@@ -13,12 +13,19 @@ on_error_die()
     fi
 }
 
-if [ $# -ne 1 ]; then
-    echo "Usage: $0 <OSG RELEASE>"
+if [ $# -lt 1 ]; then
+    echo "Requires the major version number, i.e. 3.2 for 3.2.0"
+    echo "usage: $0 <major version> [testing|development]"
     exit 1
 fi
 
-version=$1
+if [[ $1 =~ ^[0-9]+\.[0-9]+$ ]]; then
+    version=$1
+else
+    echo "Major version should be in the form of '<number>.<number>, i.e. 3.2"
+    echo "usage: $0 <major version> [testing|development]"
+    exit 1
+fi
 
 # Determine platform-specific details
 release=`cat /etc/redhat-release`